57235647145 has 32 divisors (see below), whose sum is σ = 71710722720. Its totient is φ = 43801067520.

The previous prime is 57235647127. The next prime is 57235647167. The reversal of 57235647145 is 54174653275.

It can be written as a sum of positive squares in 16 ways, for example, as 52376441881 + 4859205264 = 228859^2 + 69708^2 .

It is not a de Polignac number, because 57235647145 - 2⁷ = 57235647017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7265929 + ... + 7273801.

It is an arithmetic number, because the mean of its divisors is an integer number (2240960085).

Almost surely, 2^57235647145 is an apocalyptic number.

It is an amenable number.

57235647145 is a deficient number, since it is larger than the sum of its proper divisors (14475075575).

57235647145 is a wasteful number, since it uses less digits than its factorization.

57235647145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365.

The product of its digits is 3528000, while the sum is 49.

The spelling of 57235647145 in words is "fifty-seven billion, two hundred thirty-five million, six hundred forty-seven thousand, one hundred forty-five".