251130540452 has 96 divisors (see below), whose sum is σ = 494573071104. Its totient is φ = 111528468480.

The previous prime is 251130540443. The next prime is 251130540469. The reversal of 251130540452 is 254045031152.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72516473 + ... + 72519935.

It is an arithmetic number, because the mean of its divisors is an integer number (5151802824).

Almost surely, 2^251130540452 is an apocalyptic number.

251130540452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

251130540452 is a deficient number, since it is larger than the sum of its proper divisors (243442530652).

251130540452 is a wasteful number, since it uses less digits than its factorization.

251130540452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 251130540452 in words is "two hundred fifty-one billion, one hundred thirty million, five hundred forty thousand, four hundred fifty-two".