252501511 has 4 divisors (see below), whose sum is σ = 252593352. Its totient is φ = 252409672.

The previous prime is 252501503. The next prime is 252501539. The reversal of 252501511 is 115105252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252501511 - 2³ = 252501503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252501311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41665 + ... + 47338.

It is an arithmetic number, because the mean of its divisors is an integer number (63148338).

Almost surely, 2^252501511 is an apocalyptic number.

252501511 is a deficient number, since it is larger than the sum of its proper divisors (91841).

252501511 is an equidigital number, since it uses as much as digits as its factorization.

252501511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91840.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 252501511 is about 15890.2961268820. The cubic root of 252501511 is about 632.0546931984.

Adding to 252501511 its reverse (115105252), we get a palindrome (367606763).

The spelling of 252501511 in words is "two hundred fifty-two million, five hundred one thousand, five hundred eleven".