55757570877 has 12 divisors (see below), whose sum is σ = 80542208604. Its totient is φ = 37170100800.

The previous prime is 55757570863. The next prime is 55757570909. The reversal of 55757570877 is 77807575755.

It is a happy number.

55757570877 is a `hidden beast` number, since 5 + 5 + 7 + 57 + 570 + 8 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26143979481 + 29613591396 = 161691^2 + 172086^2 .

It is not a de Polignac number, because 55757570877 - 2⁴ = 55757570861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55757570777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107377 + ... + 350777.

It is an arithmetic number, because the mean of its divisors is an integer number (6711850717).

Almost surely, 2^55757570877 is an apocalyptic number.

It is an amenable number.

55757570877 is a deficient number, since it is larger than the sum of its proper divisors (24784637727).

55757570877 is a wasteful number, since it uses less digits than its factorization.

55757570877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268860 (or 268857 counting only the distinct ones).

The product of its (nonzero) digits is 84035000, while the sum is 63.

The spelling of 55757570877 in words is "fifty-five billion, seven hundred fifty-seven million, five hundred seventy thousand, eight hundred seventy-seven".