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55035231 = 341943783
BaseRepresentation
bin1101000111110…
…0010101011111
310211120002010220
43101330111133
5103042111411
65243332423
71235535366
oct321742537
9124502126
1055035231
112907a869
1216521113
13b52c234
1474487dd
154c71b06
hex347c55f

55035231 has 8 divisors (see below), whose sum is σ = 73557120. Its totient is φ = 36601752.

The previous prime is 55035193. The next prime is 55035257. The reversal of 55035231 is 13253055.

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

It is not a de Polignac number, because 55035231 - 29 = 55034719 is a prime.

It is a super-2 number, since 2×550352312 = 6057753302446722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55035931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20635 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (9194640).

Almost surely, 255035231 is an apocalyptic number.

55035231 is a deficient number, since it is larger than the sum of its proper divisors (18521889).

55035231 is a wasteful number, since it uses less digits than its factorization.

55035231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44205.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55035231 is about 7418.5733803744. The cubic root of 55035231 is about 380.3764298461.

Adding to 55035231 its reverse (13253055), we get a palindrome (68288286).

The spelling of 55035231 in words is "fifty-five million, thirty-five thousand, two hundred thirty-one".

Divisors: 1 3 419 1257 43783 131349 18345077 55035231