51069625 has 16 divisors (see below), whose sum is σ = 67092480. Its totient is φ = 38703600.

The previous prime is 51069593. The next prime is 51069671. The reversal of 51069625 is 52696015.

It is a happy number.

It is not a de Polignac number, because 51069625 - 2⁵ = 51069593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8377 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (4193280).

Almost surely, 2^51069625 is an apocalyptic number.

It is an amenable number.

51069625 is a deficient number, since it is larger than the sum of its proper divisors (16022855).

51069625 is a wasteful number, since it uses less digits than its factorization.

51069625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21537 (or 21527 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 51069625 is about 7146.3014909812. The cubic root of 51069625 is about 371.0116579816.

The spelling of 51069625 in words is "fifty-one million, sixty-nine thousand, six hundred twenty-five".