51013425 has 24 divisors (see below), whose sum is σ = 88012224. Its totient is φ = 26023360.

The previous prime is 51013409. The next prime is 51013439. The reversal of 51013425 is 52431015.

It is not a de Polignac number, because 51013425 - 2⁴ = 51013409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13062 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (3667176).

Almost surely, 2^51013425 is an apocalyptic number.

It is an amenable number.

51013425 is a deficient number, since it is larger than the sum of its proper divisors (36998799).

51013425 is a wasteful number, since it uses less digits than its factorization.

51013425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29609 (or 29604 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51013425 is about 7142.3683047012. The cubic root of 51013425 is about 370.8755137252.

The spelling of 51013425 in words is "fifty-one million, thirteen thousand, four hundred twenty-five".