57506455215 has 48 divisors (see below), whose sum is σ = 108802002816. Its totient is φ = 27865886400.

The previous prime is 57506455121. The next prime is 57506455217. The reversal of 57506455215 is 51255460575.

57506455215 is a `hidden beast` number, since 57 + 506 + 45 + 52 + 1 + 5 = 666.

It is not a de Polignac number, because 57506455215 - 2¹³ = 57506447023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57506455217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 852060 + ... + 917070.

It is an arithmetic number, because the mean of its divisors is an integer number (2266708392).

Almost surely, 2^57506455215 is an apocalyptic number.

57506455215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57506455215 is a deficient number, since it is larger than the sum of its proper divisors (51295547601).

57506455215 is a wasteful number, since it uses less digits than its factorization.

57506455215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66820 (or 66817 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 45.

The spelling of 57506455215 in words is "fifty-seven billion, five hundred six million, four hundred fifty-five thousand, two hundred fifteen".