251242452332325 has 72 divisors (see below), whose sum is σ = 452551413337920. Its totient is φ = 133237299340800.

The previous prime is 251242452332317. The next prime is 251242452332329. The reversal of 251242452332325 is 523233254242152.

251242452332325 is a `hidden beast` number, since 2 + 5 + 1 + 242 + 4 + 52 + 3 + 32 + 325 = 666.

251242452332325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 251242452332325 - 2³ = 251242452332317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251242452332329) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 547148029 + ... + 547607021.

It is an arithmetic number, because the mean of its divisors is an integer number (6285436296360).

Almost surely, 2^{251242452332325} is an apocalyptic number.

251242452332325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251242452332325 is a deficient number, since it is larger than the sum of its proper divisors (201308961005595).

251242452332325 is a wasteful number, since it uses less digits than its factorization.

251242452332325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472779 (or 472771 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

The spelling of 251242452332325 in words is "two hundred fifty-one trillion, two hundred forty-two billion, four hundred fifty-two million, three hundred thirty-two thousand, three hundred twenty-five".