51888660 has 24 divisors (see below), whose sum is σ = 145288416. Its totient is φ = 13836960.

The previous prime is 51888631. The next prime is 51888673. The reversal of 51888660 is 6688815.

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, 432346 + ... + 432465.

It is an arithmetic number, because the mean of its divisors is an integer number (6053684).

Almost surely, 2^51888660 is an apocalyptic number.

It is an amenable number.

51888660 is an abundant number, since it is smaller than the sum of its proper divisors (93399756).

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

51888660 is a wasteful number, since it uses less digits than its factorization.

51888660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864823 (or 864821 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 51888660 is about 7203.3783740687. The cubic root of 51888660 is about 372.9845293030.

The spelling of 51888660 in words is "fifty-one million, eight hundred eighty-eight thousand, six hundred sixty".