251225252 has 24 divisors (see below), whose sum is σ = 466434360. Its totient is φ = 117987840.

The previous prime is 251225243. The next prime is 251225263. The reversal of 251225252 is 252522152.

It can be written as a sum of positive squares in 4 ways, for example, as 59845696 + 191379556 = 7736^2 + 13834^2 .

It is a super-2 number, since 2×251225252² = 126228254484927008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33374 + ... + 40202.

It is an arithmetic number, because the mean of its divisors is an integer number (19434765).

Almost surely, 2^251225252 is an apocalyptic number.

It is an amenable number.

251225252 is a deficient number, since it is larger than the sum of its proper divisors (215209108).

251225252 is a wasteful number, since it uses less digits than its factorization.

251225252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391 (or 7389 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 251225252 is about 15850.0868136424. The cubic root of 251225252 is about 630.9879954149.

The spelling of 251225252 in words is "two hundred fifty-one million, two hundred twenty-five thousand, two hundred fifty-two".