51629608 has 16 divisors (see below), whose sum is σ = 97804980. Its totient is φ = 25548288.

The previous prime is 51629603. The next prime is 51629639. The reversal of 51629608 is 80692615.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 3992004 = 6902^2 + 1998^2 .

It is not an unprimeable number, because it can be changed into a prime (51629603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32491 + ... + 34042.

Almost surely, 2^51629608 is an apocalyptic number.

It is an amenable number.

51629608 is a deficient number, since it is larger than the sum of its proper divisors (46175372).

51629608 is a wasteful number, since it uses less digits than its factorization.

51629608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66636 (or 66632 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 51629608 is about 7185.3745900962. The cubic root of 51629608 is about 372.3627901781.

The spelling of 51629608 in words is "fifty-one million, six hundred twenty-nine thousand, six hundred eight".