252047399 has 2 divisors, whose sum is σ = 252047400. Its totient is φ = 252047398.

The previous prime is 252047359. The next prime is 252047401. The reversal of 252047399 is 993740252.

252047399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252047399 - 2²⁴ = 235270183 is a prime.

Together with 252047401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252047309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126023699 + 126023700.

It is an arithmetic number, because the mean of its divisors is an integer number (126023700).

Almost surely, 2^252047399 is an apocalyptic number.

252047399 is a deficient number, since it is larger than the sum of its proper divisors (1).

252047399 is an equidigital number, since it uses as much as digits as its factorization.

252047399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 252047399 is about 15876.0007243638. Note that the first 3 decimals coincide. The cubic root of 252047399 is about 631.6755590196.

The spelling of 252047399 in words is "two hundred fifty-two million, forty-seven thousand, three hundred ninety-nine".