252401939 has 2 divisors, whose sum is σ = 252401940. Its totient is φ = 252401938.

The previous prime is 252401917. The next prime is 252401971. The reversal of 252401939 is 939104252.

252401939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252401939 - 2⁸ = 252401683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252401899 and 252401908.

It is not a weakly prime, because it can be changed into another prime (252401999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126200969 + 126200970.

It is an arithmetic number, because the mean of its divisors is an integer number (126200970).

Almost surely, 2^252401939 is an apocalyptic number.

252401939 is a deficient number, since it is larger than the sum of its proper divisors (1).

252401939 is an equidigital number, since it uses as much as digits as its factorization.

252401939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 252401939 is about 15887.1627108178. The cubic root of 252401939 is about 631.9716003302.

The spelling of 252401939 in words is "two hundred fifty-two million, four hundred one thousand, nine hundred thirty-nine".