52504157 has 2 divisors, whose sum is σ = 52504158. Its totient is φ = 52504156.

The previous prime is 52504139. The next prime is 52504169. The reversal of 52504157 is 75140525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36711481 + 15792676 = 6059^2 + 3974^2 .

It is a cyclic number.

It is not a de Polignac number, because 52504157 - 2¹⁶ = 52438621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52504187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26252078 + 26252079.

It is an arithmetic number, because the mean of its divisors is an integer number (26252079).

Almost surely, 2^52504157 is an apocalyptic number.

It is an amenable number.

52504157 is a deficient number, since it is larger than the sum of its proper divisors (1).

52504157 is an equidigital number, since it uses as much as digits as its factorization.

52504157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 52504157 is about 7245.9752276695. The cubic root of 52504157 is about 374.4535020342.

The spelling of 52504157 in words is "fifty-two million, five hundred four thousand, one hundred fifty-seven".