51877660 has 48 divisors (see below), whose sum is σ = 112210560. Its totient is φ = 20136960.

The previous prime is 51877649. The next prime is 51877687. The reversal of 51877660 is 6677815.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 215140 + ... + 215380.

It is an arithmetic number, because the mean of its divisors is an integer number (2337720).

Almost surely, 2^51877660 is an apocalyptic number.

It is an amenable number.

51877660 is an abundant number, since it is smaller than the sum of its proper divisors (60332900).

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

51877660 is a wasteful number, since it uses less digits than its factorization.

51877660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 51877660 is about 7202.6148029726. The cubic root of 51877660 is about 372.9581708155.

The spelling of 51877660 in words is "fifty-one million, eight hundred seventy-seven thousand, six hundred sixty".