52540415957 has 2 divisors, whose sum is σ = 52540415958. Its totient is φ = 52540415956.

The previous prime is 52540415947. The next prime is 52540416011. The reversal of 52540415957 is 75951404525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28515725956 + 24024690001 = 168866^2 + 154999^2 .

It is a cyclic number.

It is not a de Polignac number, because 52540415957 - 2⁸ = 52540415701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52540415947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26270207978 + 26270207979.

It is an arithmetic number, because the mean of its divisors is an integer number (26270207979).

Almost surely, 2^52540415957 is an apocalyptic number.

It is an amenable number.

52540415957 is a deficient number, since it is larger than the sum of its proper divisors (1).

52540415957 is an equidigital number, since it uses as much as digits as its factorization.

52540415957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 52540415957 in words is "fifty-two billion, five hundred forty million, four hundred fifteen thousand, nine hundred fifty-seven".