51886860 has 24 divisors (see below), whose sum is σ = 145283376. Its totient is φ = 13836480.

The previous prime is 51886847. The next prime is 51886883. The reversal of 51886860 is 6868815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432331 + ... + 432450.

It is an arithmetic number, because the mean of its divisors is an integer number (6053474).

Almost surely, 2^51886860 is an apocalyptic number.

It is an amenable number.

51886860 is an abundant number, since it is smaller than the sum of its proper divisors (93396516).

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

51886860 is a wasteful number, since it uses less digits than its factorization.

51886860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864793 (or 864791 counting only the distinct ones).

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

The square root of 51886860 is about 7203.2534316099. The cubic root of 51886860 is about 372.9802163509.

It can be divided in two parts, 518 and 86860, that added together give a palindrome (87378).

The spelling of 51886860 in words is "fifty-one million, eight hundred eighty-six thousand, eight hundred sixty".