251480125 has 64 divisors (see below), whose sum is σ = 357477120. Its totient is φ = 175392000.

The previous prime is 251480111. The next prime is 251480161. The reversal of 251480125 is 521084152.

It is not a de Polignac number, because 251480125 - 2⁵ = 251480093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 251480093 and 251480102.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4122595 + ... + 4122655.

It is an arithmetic number, because the mean of its divisors is an integer number (5585580).

Almost surely, 2^251480125 is an apocalyptic number.

251480125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251480125 is a deficient number, since it is larger than the sum of its proper divisors (105996995).

251480125 is a wasteful number, since it uses less digits than its factorization.

251480125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 251480125 is about 15858.1248891538. The cubic root of 251480125 is about 631.2013065730.

The spelling of 251480125 in words is "two hundred fifty-one million, four hundred eighty thousand, one hundred twenty-five".