252857026 has 8 divisors (see below), whose sum is σ = 379433484. Its totient is φ = 126379200.

The previous prime is 252856969. The next prime is 252857027. The reversal of 252857026 is 620758252.

It can be written as a sum of positive squares in 2 ways, for example, as 249798025 + 3059001 = 15805^2 + 1749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (252857027) 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, 17875 + ... + 28726.

Almost surely, 2^252857026 is an apocalyptic number.

252857026 is a deficient number, since it is larger than the sum of its proper divisors (126576458).

252857026 is a wasteful number, since it uses less digits than its factorization.

252857026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49316.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 252857026 is about 15901.4787362685. The cubic root of 252857026 is about 632.3511924766.

The spelling of 252857026 in words is "two hundred fifty-two million, eight hundred fifty-seven thousand, twenty-six".