251875480 has 32 divisors (see below), whose sum is σ = 567278640. Its totient is φ = 100650880.

The previous prime is 251875453. The next prime is 251875483. The reversal of 251875480 is 84578152.

It is a super-3 number, since 3×251875480³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251875483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48615 + ... + 53545.

Almost surely, 2^251875480 is an apocalyptic number.

251875480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251875480 is an abundant number, since it is smaller than the sum of its proper divisors (315403160).

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

251875480 is a wasteful number, since it uses less digits than its factorization.

251875480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6219 (or 6215 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 251875480 is about 15870.5853704266. The cubic root of 251875480 is about 631.5319065013.

The spelling of 251875480 in words is "two hundred fifty-one million, eight hundred seventy-five thousand, four hundred eighty".