252504407 has 2 divisors, whose sum is σ = 252504408. Its totient is φ = 252504406.

The previous prime is 252504403. The next prime is 252504431. The reversal of 252504407 is 704405252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252504407 - 2² = 252504403 is a prime.

It is a Chen prime.

It is equal to p_13808810 and since 252504407 and 13808810 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252504407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252504401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126252203 + 126252204.

It is an arithmetic number, because the mean of its divisors is an integer number (126252204).

Almost surely, 2^252504407 is an apocalyptic number.

252504407 is a deficient number, since it is larger than the sum of its proper divisors (1).

252504407 is an equidigital number, since it uses as much as digits as its factorization.

252504407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 252504407 is about 15890.3872514171. The cubic root of 252504407 is about 632.0571095845.

Adding to 252504407 its reverse (704405252), we get a palindrome (956909659).

The spelling of 252504407 in words is "two hundred fifty-two million, five hundred four thousand, four hundred seven".