57445519655 has 32 divisors (see below), whose sum is σ = 73617683328. Its totient is φ = 42882048000.

The previous prime is 57445519639. The next prime is 57445519661. The reversal of 57445519655 is 55691554475.

It is not a de Polignac number, because 57445519655 - 2⁴ = 57445519639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57445519655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6939599 + ... + 6947871.

It is an arithmetic number, because the mean of its divisors is an integer number (2300552604).

Almost surely, 2^57445519655 is an apocalyptic number.

57445519655 is a deficient number, since it is larger than the sum of its proper divisors (16172163673).

57445519655 is a wasteful number, since it uses less digits than its factorization.

57445519655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987.

The product of its digits is 18900000, while the sum is 56.

The spelling of 57445519655 in words is "fifty-seven billion, four hundred forty-five million, five hundred nineteen thousand, six hundred fifty-five".