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55022131 = 173557571
BaseRepresentation
bin1101000111100…
…1001000110011
310211112102011201
43101321020303
5103041202011
65243152031
71235452243
oct321711063
9124472151
1055022131
1129070a3a
1216515617
13b526298
147443b23
154c6ccc1
hex3479233

55022131 has 8 divisors (see below), whose sum is σ = 55536624. Its totient is φ = 54510240.

The previous prime is 55022129. The next prime is 55022147. The reversal of 55022131 is 13122055.

55022131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55022131 - 21 = 55022129 is a prime.

It is a super-2 number, since 2×550221312 = 6054869799562322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55022099 and 55022108.

It is not an unprimeable number, because it can be changed into a prime (55022531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96076 + ... + 96646.

It is an arithmetic number, because the mean of its divisors is an integer number (6942078).

Almost surely, 255022131 is an apocalyptic number.

55022131 is a deficient number, since it is larger than the sum of its proper divisors (514493).

55022131 is a wasteful number, since it uses less digits than its factorization.

55022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55022131 is about 7417.6904087458. The cubic root of 55022131 is about 380.3462472003.

Adding to 55022131 its reverse (13122055), we get a palindrome (68144186).

The spelling of 55022131 in words is "fifty-five million, twenty-two thousand, one hundred thirty-one".

Divisors: 1 173 557 571 96361 98783 318047 55022131