251012468 has 12 divisors (see below), whose sum is σ = 502024992. Its totient is φ = 107576760.

The previous prime is 251012459. The next prime is 251012473. The reversal of 251012468 is 864210152.

251012468 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 251012468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4482338 + ... + 4482393.

It is an arithmetic number, because the mean of its divisors is an integer number (41835416).

Almost surely, 2^251012468 is an apocalyptic number.

251012468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

251012468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

251012468 is a wasteful number, since it uses less digits than its factorization.

251012468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8964742 (or 8964740 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 251012468 is about 15843.3729994594. The cubic root of 251012468 is about 630.8097993233.

The spelling of 251012468 in words is "two hundred fifty-one million, twelve thousand, four hundred sixty-eight".