252451577 has 12 divisors (see below), whose sum is σ = 294259536. Its totient is φ = 215951400.

The previous prime is 252451567. The next prime is 252451579. The reversal of 252451577 is 775154252.

It is a de Polignac number, because none of the positive numbers 2^k-252451577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252451577.

It is not an unprimeable number, because it can be changed into a prime (252451579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20702 + ... + 30552.

It is an arithmetic number, because the mean of its divisors is an integer number (24521628).

Almost surely, 2^252451577 is an apocalyptic number.

It is an amenable number.

252451577 is a deficient number, since it is larger than the sum of its proper divisors (41807959).

252451577 is an equidigital number, since it uses as much as digits as its factorization.

252451577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10388 (or 10381 counting only the distinct ones).

The product of its digits is 98000, while the sum is 38.

The square root of 252451577 is about 15888.7248387024. The cubic root of 252451577 is about 632.0130259893.

The spelling of 252451577 in words is "two hundred fifty-two million, four hundred fifty-one thousand, five hundred seventy-seven".