51187796 has 24 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 23206400.

The previous prime is 51187781. The next prime is 51187823. The reversal of 51187796 is 69778115.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 18461 + ... + 21051.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2^51187796 is an apocalyptic number.

It is an amenable number.

51187796 is a deficient number, since it is larger than the sum of its proper divisors (46789804).

51187796 is a wasteful number, since it uses less digits than its factorization.

51187796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055 (or 3053 counting only the distinct ones).

The product of its digits is 105840, while the sum is 44.

The square root of 51187796 is about 7154.5646967513. The cubic root of 51187796 is about 371.2976012456.

The spelling of 51187796 in words is "fifty-one million, one hundred eighty-seven thousand, seven hundred ninety-six".