57123020755 has 16 divisors (see below), whose sum is σ = 69104332800. Its totient is φ = 45327455712.

The previous prime is 57123020719. The next prime is 57123020767. The reversal of 57123020755 is 55702032175.

It is a cyclic number.

It is not a de Polignac number, because 57123020755 - 2¹³ = 57123012563 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412396 + ... + 3429094.

It is an arithmetic number, because the mean of its divisors is an integer number (4319020800).

Almost surely, 2^57123020755 is an apocalyptic number.

57123020755 is a deficient number, since it is larger than the sum of its proper divisors (11981312045).

57123020755 is a wasteful number, since it uses less digits than its factorization.

57123020755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218.

The product of its (nonzero) digits is 73500, while the sum is 37.

The spelling of 57123020755 in words is "fifty-seven billion, one hundred twenty-three million, twenty thousand, seven hundred fifty-five".