251456052 has 24 divisors (see below), whose sum is σ = 594160000. Its totient is φ = 82757376.

The previous prime is 251456047. The next prime is 251456057. The reversal of 251456052 is 250654152.

It is an interprime number because it is at equal distance from previous prime (251456047) and next prime (251456057).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251456057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131677 + ... + 133572.

Almost surely, 2^251456052 is an apocalyptic number.

It is an amenable number.

251456052 is an abundant number, since it is smaller than the sum of its proper divisors (342703948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251456052 is a wasteful number, since it uses less digits than its factorization.

251456052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265335 (or 265333 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 251456052 is about 15857.3658594358. The cubic root of 251456052 is about 631.1811652942.

The spelling of 251456052 in words is "two hundred fifty-one million, four hundred fifty-six thousand, fifty-two".