51825239325 has 72 divisors (see below), whose sum is σ = 101958742080. Its totient is φ = 25046841600.

The previous prime is 51825239267. The next prime is 51825239329. The reversal of 51825239325 is 52393252815.

51825239325 is a `hidden beast` number, since 5 + 1 + 8 + 252 + 393 + 2 + 5 = 666.

It is not a de Polignac number, because 51825239325 - 2⁷ = 51825239197 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 (51825239329) 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, 165216 + ... + 361865.

It is an arithmetic number, because the mean of its divisors is an integer number (1416093640).

Almost surely, 2^51825239325 is an apocalyptic number.

It is an amenable number.

51825239325 is a deficient number, since it is larger than the sum of its proper divisors (50133502755).

51825239325 is a wasteful number, since it uses less digits than its factorization.

51825239325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527139 (or 527131 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 51825239325 in words is "fifty-one billion, eight hundred twenty-five million, two hundred thirty-nine thousand, three hundred twenty-five".