51516966 has 16 divisors (see below), whose sum is σ = 103428864. Its totient is φ = 17106504.

The previous prime is 51516943. The next prime is 51516973. The reversal of 51516966 is 66961515.

It is a congruent number.

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, 14746 + ... + 17901.

It is an arithmetic number, because the mean of its divisors is an integer number (6464304).

Almost surely, 2^51516966 is an apocalyptic number.

51516966 is an abundant number, since it is smaller than the sum of its proper divisors (51911898).

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

51516966 is a wasteful number, since it uses less digits than its factorization.

51516966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32915.

The product of its digits is 48600, while the sum is 39.

The square root of 51516966 is about 7177.5320270968. The cubic root of 51516966 is about 372.0917943201.

The spelling of 51516966 in words is "fifty-one million, five hundred sixteen thousand, nine hundred sixty-six".