55570057156 has 6 divisors (see below), whose sum is σ = 97247600030. Its totient is φ = 27785028576.

The previous prime is 55570057141. The next prime is 55570057157. The reversal of 55570057156 is 65175007555.

It can be written as a sum of positive squares in only one way, i.e., 53261254656 + 2308802500 = 230784^2 + 48050^2 .

It is a super-2 number, since 2×55570057156² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55570057157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6946257141 + ... + 6946257148.

Almost surely, 2^55570057156 is an apocalyptic number.

It is an amenable number.

55570057156 is a deficient number, since it is larger than the sum of its proper divisors (41677542874).

55570057156 is a wasteful number, since it uses less digits than its factorization.

55570057156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13892514293 (or 13892514291 counting only the distinct ones).

The product of its (nonzero) digits is 918750, while the sum is 46.

The spelling of 55570057156 in words is "fifty-five billion, five hundred seventy million, fifty-seven thousand, one hundred fifty-six".