57266892561 has 16 divisors (see below), whose sum is σ = 78442115904. Its totient is φ = 37135393344.

The previous prime is 57266892547. The next prime is 57266892583. The reversal of 57266892561 is 16529866275.

It is not a de Polignac number, because 57266892561 - 2¹⁸ = 57266630417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57266892061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322306 + ... + 467348.

It is an arithmetic number, because the mean of its divisors is an integer number (4902632244).

Almost surely, 2^57266892561 is an apocalyptic number.

It is an amenable number.

57266892561 is a deficient number, since it is larger than the sum of its proper divisors (21175223343).

57266892561 is a wasteful number, since it uses less digits than its factorization.

57266892561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148640.

The product of its digits is 10886400, while the sum is 57.

The spelling of 57266892561 in words is "fifty-seven billion, two hundred sixty-six million, eight hundred ninety-two thousand, five hundred sixty-one".