252451611 has 24 divisors (see below), whose sum is σ = 386763936. Its totient is φ = 158336640.

The previous prime is 252451609. The next prime is 252451663. The reversal of 252451611 is 116154252.

252451611 is a `hidden beast` number, since 2 + 5 + 2 + 45 + 1 + 611 = 666.

252451611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252451611 - 2¹ = 252451609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252451601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2631 + ... + 22623.

It is an arithmetic number, because the mean of its divisors is an integer number (16115164).

Almost surely, 2^252451611 is an apocalyptic number.

252451611 is a deficient number, since it is larger than the sum of its proper divisors (134312325).

252451611 is a wasteful number, since it uses less digits than its factorization.

252451611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083 (or 20080 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 252451611 is about 15888.7259086435. The cubic root of 252451611 is about 632.0130543624.

The spelling of 252451611 in words is "two hundred fifty-two million, four hundred fifty-one thousand, six hundred eleven".