51660748 has 6 divisors (see below), whose sum is σ = 90406316. Its totient is φ = 25830372.

The previous prime is 51660733. The next prime is 51660751. The reversal of 51660748 is 84706615.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457590 + ... + 6457597.

Almost surely, 2^51660748 is an apocalyptic number.

It is an amenable number.

51660748 is a deficient number, since it is larger than the sum of its proper divisors (38745568).

51660748 is a wasteful number, since it uses less digits than its factorization.

51660748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12915191 (or 12915189 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 51660748 is about 7187.5411650995. The cubic root of 51660748 is about 372.4376377142.

It can be divided in two parts, 5 and 1660748, that added together give a triangular number (1660753 = T₁₈₂₂).

The spelling of 51660748 in words is "fifty-one million, six hundred sixty thousand, seven hundred forty-eight".