51316772 has 48 divisors (see below), whose sum is σ = 102114432. Its totient is φ = 22387200.

The previous prime is 51316751. The next prime is 51316813. The reversal of 51316772 is 27761315.

It is a super-2 number, since 2×51316772² = 5266822176999968, which contains 22 as substring.

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, 127772 + ... + 128172.

It is an arithmetic number, because the mean of its divisors is an integer number (2127384).

Almost surely, 2^51316772 is an apocalyptic number.

51316772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51316772 is a deficient number, since it is larger than the sum of its proper divisors (50797660).

51316772 is a wasteful number, since it uses less digits than its factorization.

51316772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 546 counting only the distinct ones).

The product of its digits is 8820, while the sum is 32.

The square root of 51316772 is about 7163.5725723971. The cubic root of 51316772 is about 371.6091879806.

The spelling of 51316772 in words is "fifty-one million, three hundred sixteen thousand, seven hundred seventy-two".