55912157 has 8 divisors (see below), whose sum is σ = 64026432. Its totient is φ = 47829600.

The previous prime is 55912147. The next prime is 55912159. The reversal of 55912157 is 75121955.

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

It is not a de Polignac number, because 55912157 - 2⁴ = 55912141 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 (55912159) 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, 4019 + ... + 11312.

It is an arithmetic number, because the mean of its divisors is an integer number (8003304).

Almost surely, 2^55912157 is an apocalyptic number.

It is an amenable number.

55912157 is a deficient number, since it is larger than the sum of its proper divisors (8114275).

55912157 is a wasteful number, since it uses less digits than its factorization.

55912157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15859.

The product of its digits is 15750, while the sum is 35.

The square root of 55912157 is about 7477.4432127566. The cubic root of 55912157 is about 382.3860870864.

The spelling of 55912157 in words is "fifty-five million, nine hundred twelve thousand, one hundred fifty-seven".