55707569157 has 16 divisors (see below), whose sum is σ = 74596973760. Its totient is φ = 36978614400.

The previous prime is 55707569101. The next prime is 55707569171. The reversal of 55707569157 is 75196570755.

It is a happy number.

It is not a de Polignac number, because 55707569157 - 2⁸ = 55707568901 is a prime.

It is a super-2 number, since 2×55707569157² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55707569097 and 55707569106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55707568157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615694 + ... + 700352.

It is an arithmetic number, because the mean of its divisors is an integer number (4662310860).

Almost surely, 2^55707569157 is an apocalyptic number.

It is an amenable number.

55707569157 is a deficient number, since it is larger than the sum of its proper divisors (18889404603).

55707569157 is a wasteful number, since it uses less digits than its factorization.

55707569157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85604.

The product of its (nonzero) digits is 11576250, while the sum is 57.

The spelling of 55707569157 in words is "fifty-five billion, seven hundred seven million, five hundred sixty-nine thousand, one hundred fifty-seven".