55310157 has 12 divisors (see below), whose sum is σ = 91305760. Its totient is φ = 31605768.

The previous prime is 55310149. The next prime is 55310183. The reversal of 55310157 is 75101355.

55310157 is a `hidden beast` number, since 553 + 101 + 5 + 7 = 666.

It is not a de Polignac number, because 55310157 - 2³ = 55310149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55310157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438907 + ... + 439032.

Almost surely, 2^55310157 is an apocalyptic number.

It is an amenable number.

55310157 is a deficient number, since it is larger than the sum of its proper divisors (35995603).

55310157 is a wasteful number, since it uses less digits than its factorization.

55310157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877952 (or 877949 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 55310157 is about 7437.0798704868. The cubic root of 55310157 is about 381.0087624827.

The spelling of 55310157 in words is "fifty-five million, three hundred ten thousand, one hundred fifty-seven".