252022457 has 6 divisors (see below), whose sum is σ = 254893998. Its totient is φ = 249182912.

The previous prime is 252022451. The next prime is 252022469. The reversal of 252022457 is 754220252.

It can be written as a sum of positive squares in 3 ways, for example, as 20647936 + 231374521 = 4544^2 + 15211^2 .

It is not a de Polignac number, because 252022457 - 2²⁶ = 184913593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252022451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7988 + ... + 23829.

It is an arithmetic number, because the mean of its divisors is an integer number (42482333).

Almost surely, 2^252022457 is an apocalyptic number.

It is an amenable number.

252022457 is a deficient number, since it is larger than the sum of its proper divisors (2871541).

252022457 is an frugal number, since it uses more digits than its factorization.

252022457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31995 (or 31906 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 252022457 is about 15875.2151796440. The cubic root of 252022457 is about 631.6547219712.

The spelling of 252022457 in words is "two hundred fifty-two million, twenty-two thousand, four hundred fifty-seven".