51608825 has 6 divisors (see below), whose sum is σ = 63994974. Its totient is φ = 41287040.

The previous prime is 51608813. The next prime is 51608839. The reversal of 51608825 is 52880615.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7678441 + 43930384 = 2771^2 + 6628^2 .

It is not a de Polignac number, because 51608825 - 2²⁰ = 50560249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1032152 + ... + 1032201.

It is an arithmetic number, because the mean of its divisors is an integer number (10665829).

Almost surely, 2^51608825 is an apocalyptic number.

It is an amenable number.

51608825 is a deficient number, since it is larger than the sum of its proper divisors (12386149).

51608825 is a wasteful number, since it uses less digits than its factorization.

51608825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064363 (or 2064358 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 51608825 is about 7183.9282429601. The cubic root of 51608825 is about 372.3128197909.

The spelling of 51608825 in words is "fifty-one million, six hundred eight thousand, eight hundred twenty-five".