251372480 has 56 divisors (see below), whose sum is σ = 599937840. Its totient is φ = 100321280.

The previous prime is 251372479. The next prime is 251372483. The reversal of 251372480 is 84273152.

251372480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251372483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258395 + ... + 259365.

Almost surely, 2^251372480 is an apocalyptic number.

251372480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251372480 is an abundant number, since it is smaller than the sum of its proper divisors (348565360).

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

251372480 is an equidigital number, since it uses as much as digits as its factorization.

251372480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 251372480 is about 15854.7305243577. The cubic root of 251372480 is about 631.1112327066. Note that the first 3 decimals are identical.

The spelling of 251372480 in words is "two hundred fifty-one million, three hundred seventy-two thousand, four hundred eighty".