252304311 has 16 divisors (see below), whose sum is σ = 384857600. Its totient is φ = 144026208.

The previous prime is 252304309. The next prime is 252304331. The reversal of 252304311 is 113403252.

It is not a de Polignac number, because 252304311 - 2¹ = 252304309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252304301) 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, 16830 + ... + 28068.

It is an arithmetic number, because the mean of its divisors is an integer number (24053600).

Almost surely, 2^252304311 is an apocalyptic number.

252304311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252304311 is a deficient number, since it is larger than the sum of its proper divisors (132553289).

252304311 is a wasteful number, since it uses less digits than its factorization.

252304311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 252304311 is about 15884.0898700555. The cubic root of 252304311 is about 631.8901085104.

Adding to 252304311 its reverse (113403252), we get a palindrome (365707563).

The spelling of 252304311 in words is "two hundred fifty-two million, three hundred four thousand, three hundred eleven".