57266561231 has 16 divisors (see below), whose sum is σ = 63866769408. Its totient is φ = 50900968800.

The previous prime is 57266561197. The next prime is 57266561269. The reversal of 57266561231 is 13216566275.

It is a happy number.

It is not a de Polignac number, because 57266561231 - 2¹⁰ = 57266560207 is a prime.

It is a super-2 number, since 2×57266561231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57266561281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456461 + ... + 568233.

It is an arithmetic number, because the mean of its divisors is an integer number (3991673088).

Almost surely, 2^57266561231 is an apocalyptic number.

57266561231 is a deficient number, since it is larger than the sum of its proper divisors (6600208177).

57266561231 is a wasteful number, since it uses less digits than its factorization.

57266561231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112822.

The product of its digits is 453600, while the sum is 44.

The spelling of 57266561231 in words is "fifty-seven billion, two hundred sixty-six million, five hundred sixty-one thousand, two hundred thirty-one".