252511401 has 16 divisors (see below), whose sum is σ = 347203584. Its totient is φ = 163150224.

The previous prime is 252511397. The next prime is 252511417. The reversal of 252511401 is 104115252.

It is not a de Polignac number, because 252511401 - 2² = 252511397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252511901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5830 + ... + 23216.

It is an arithmetic number, because the mean of its divisors is an integer number (21700224).

Almost surely, 2^252511401 is an apocalyptic number.

It is an amenable number.

252511401 is a deficient number, since it is larger than the sum of its proper divisors (94692183).

252511401 is a wasteful number, since it uses less digits than its factorization.

252511401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17540.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 252511401 is about 15890.6073200492. The cubic root of 252511401 is about 632.0629452141.

Adding to 252511401 its reverse (104115252), we get a palindrome (356626653).

The spelling of 252511401 in words is "two hundred fifty-two million, five hundred eleven thousand, four hundred one".