251055325 has 12 divisors (see below), whose sum is σ = 316586880. Its totient is φ = 197438960.

The previous prime is 251055319. The next prime is 251055331. The reversal of 251055325 is 523550152.

It is an interprime number because it is at equal distance from previous prime (251055319) and next prime (251055331).

It is not a de Polignac number, because 251055325 - 2³ = 251055317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 251055293 and 251055302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83629 + ... + 86578.

It is an arithmetic number, because the mean of its divisors is an integer number (26382240).

Almost surely, 2^251055325 is an apocalyptic number.

251055325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251055325 is a deficient number, since it is larger than the sum of its proper divisors (65531555).

251055325 is a wasteful number, since it uses less digits than its factorization.

251055325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170276 (or 170271 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 251055325 is about 15844.7254630681. The cubic root of 251055325 is about 630.8456980410.

The spelling of 251055325 in words is "two hundred fifty-one million, fifty-five thousand, three hundred twenty-five".