53012442557 has 2 divisors, whose sum is σ = 53012442558. Its totient is φ = 53012442556.

The previous prime is 53012442493. The next prime is 53012442611. The reversal of 53012442557 is 75524421035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45054732121 + 7957710436 = 212261^2 + 89206^2 .

It is a cyclic number.

It is not a de Polignac number, because 53012442557 - 2⁶ = 53012442493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53012442557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53012442257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26506221278 + 26506221279.

It is an arithmetic number, because the mean of its divisors is an integer number (26506221279).

Almost surely, 2^53012442557 is an apocalyptic number.

It is an amenable number.

53012442557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53012442557 is an equidigital number, since it uses as much as digits as its factorization.

53012442557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 53012442557 in words is "fifty-three billion, twelve million, four hundred forty-two thousand, five hundred fifty-seven".