52072406357 has 2 divisors, whose sum is σ = 52072406358. Its totient is φ = 52072406356.

The previous prime is 52072406261. The next prime is 52072406389. The reversal of 52072406357 is 75360427025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46081491556 + 5990914801 = 214666^2 + 77401^2 .

It is a cyclic number.

It is not a de Polignac number, because 52072406357 - 2⁸ = 52072406101 is a prime.

It is a super-2 number, since 2×52072406357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52072406957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26036203178 + 26036203179.

It is an arithmetic number, because the mean of its divisors is an integer number (26036203179).

Almost surely, 2^52072406357 is an apocalyptic number.

It is an amenable number.

52072406357 is a deficient number, since it is larger than the sum of its proper divisors (1).

52072406357 is an equidigital number, since it uses as much as digits as its factorization.

52072406357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 52072406357 in words is "fifty-two billion, seventy-two million, four hundred six thousand, three hundred fifty-seven".