51692660 has 24 divisors (see below), whose sum is σ = 108921120. Its totient is φ = 20607264.

The previous prime is 51692659. The next prime is 51692701. The reversal of 51692660 is 6629615.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51692660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931 + ... + 10349.

It is an arithmetic number, because the mean of its divisors is an integer number (4538380).

Almost surely, 2^51692660 is an apocalyptic number.

It is an amenable number.

51692660 is an abundant number, since it is smaller than the sum of its proper divisors (57228460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51692660 is a wasteful number, since it uses less digits than its factorization.

51692660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735 (or 8733 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 51692660 is about 7189.7607748798. The cubic root of 51692660 is about 372.5143096165.

The spelling of 51692660 in words is "fifty-one million, six hundred ninety-two thousand, six hundred sixty".