251960325 has 12 divisors (see below), whose sum is σ = 416574528. Its totient is φ = 134378800.

The previous prime is 251960297. The next prime is 251960329. The reversal of 251960325 is 523069152.

It is not a de Polignac number, because 251960325 - 2¹³ = 251952133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251960329) 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 11 ways as a sum of consecutive naturals, for example, 1679661 + ... + 1679810.

It is an arithmetic number, because the mean of its divisors is an integer number (34714544).

Almost surely, 2^251960325 is an apocalyptic number.

251960325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251960325 is a deficient number, since it is larger than the sum of its proper divisors (164614203).

251960325 is a wasteful number, since it uses less digits than its factorization.

251960325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359484 (or 3359479 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 251960325 is about 15873.2581721586. The cubic root of 251960325 is about 631.6028096704.

The spelling of 251960325 in words is "two hundred fifty-one million, nine hundred sixty thousand, three hundred twenty-five".