57124837261 has 2 divisors, whose sum is σ = 57124837262. Its totient is φ = 57124837260.

The previous prime is 57124837249. The next prime is 57124837267. The reversal of 57124837261 is 16273842175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39310596361 + 17814240900 = 198269^2 + 133470^2 .

It is a cyclic number.

It is not a de Polignac number, because 57124837261 - 2¹⁵ = 57124804493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57124837267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28562418630 + 28562418631.

It is an arithmetic number, because the mean of its divisors is an integer number (28562418631).

Almost surely, 2^57124837261 is an apocalyptic number.

It is an amenable number.

57124837261 is a deficient number, since it is larger than the sum of its proper divisors (1).

57124837261 is an equidigital number, since it uses as much as digits as its factorization.

57124837261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 46.

The spelling of 57124837261 in words is "fifty-seven billion, one hundred twenty-four million, eight hundred thirty-seven thousand, two hundred sixty-one".