Search a number
-
+
55553141 = 77936163
BaseRepresentation
bin1101001111101…
…0110001110101
310212112101120202
43103322301311
5103210200031
65302410245
71243123340
oct323726165
9125471522
1055553141
11293a3996
1216730985
13b680ba7
147541457
154d252cb
hex34fac75

55553141 has 4 divisors (see below), whose sum is σ = 63489312. Its totient is φ = 47616972.

The previous prime is 55553129. The next prime is 55553143. The reversal of 55553141 is 14135555.

55553141 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55553141 - 214 = 55536757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55553143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3968075 + ... + 3968088.

It is an arithmetic number, because the mean of its divisors is an integer number (15872328).

Almost surely, 255553141 is an apocalyptic number.

It is an amenable number.

55553141 is a deficient number, since it is larger than the sum of its proper divisors (7936171).

55553141 is an equidigital number, since it uses as much as digits as its factorization.

55553141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936170.

The product of its digits is 7500, while the sum is 29.

The square root of 55553141 is about 7453.3979499286. The cubic root of 55553141 is about 381.5658861521.

Adding to 55553141 its reverse (14135555), we get a palindrome (69688696).

The spelling of 55553141 in words is "fifty-five million, five hundred fifty-three thousand, one hundred forty-one".

Divisors: 1 7 7936163 55553141