52501913 has 2 divisors, whose sum is σ = 52501914. Its totient is φ = 52501912.

The previous prime is 52501909. The next prime is 52501931. The reversal of 52501913 is 31910525.

Together with next prime (52501931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41822089 + 10679824 = 6467^2 + 3268^2 .

It is a cyclic number.

It is not a de Polignac number, because 52501913 - 2² = 52501909 is a prime.

It is not a weakly prime, because it can be changed into another prime (52501903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26250956 + 26250957.

It is an arithmetic number, because the mean of its divisors is an integer number (26250957).

Almost surely, 2^52501913 is an apocalyptic number.

It is an amenable number.

52501913 is a deficient number, since it is larger than the sum of its proper divisors (1).

52501913 is an equidigital number, since it uses as much as digits as its factorization.

52501913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 52501913 is about 7245.8203814337. The cubic root of 52501913 is about 374.4481673098.

The spelling of 52501913 in words is "fifty-two million, five hundred one thousand, nine hundred thirteen".