51626916 has 48 divisors (see below), whose sum is σ = 146018880. Its totient is φ = 15644160.

The previous prime is 51626903. The next prime is 51626941. The reversal of 51626916 is 61962615.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 20541 + ... + 22916.

It is an arithmetic number, because the mean of its divisors is an integer number (3042060).

Almost surely, 2^51626916 is an apocalyptic number.

It is an amenable number.

51626916 is an abundant number, since it is smaller than the sum of its proper divisors (94391964).

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

51626916 is a wasteful number, since it uses less digits than its factorization.

51626916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43481 (or 43473 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 51626916 is about 7185.1872626954. The cubic root of 51626916 is about 372.3563183228.

The spelling of 51626916 in words is "fifty-one million, six hundred twenty-six thousand, nine hundred sixteen".