51413625 has 48 divisors (see below), whose sum is σ = 96759936. Its totient is φ = 26215200.

The previous prime is 51413617. The next prime is 51413641. The reversal of 51413625 is 52631415.

It is not a de Polignac number, because 51413625 - 2³ = 51413617 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24882 + ... + 26868.

It is an arithmetic number, because the mean of its divisors is an integer number (2015832).

Almost surely, 2^51413625 is an apocalyptic number.

It is an amenable number.

51413625 is a deficient number, since it is larger than the sum of its proper divisors (45346311).

51413625 is a wasteful number, since it uses less digits than its factorization.

51413625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2018 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 51413625 is about 7170.3294903372. The cubic root of 51413625 is about 371.8428272899.

The spelling of 51413625 in words is "fifty-one million, four hundred thirteen thousand, six hundred twenty-five".