51131676 has 24 divisors (see below), whose sum is σ = 121847040. Its totient is φ = 16681072.

The previous prime is 51131651. The next prime is 51131677. The reversal of 51131676 is 67613115.

It is a super-2 number, since 2×51131676² = 5228896581137952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51131677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44766 + ... + 45893.

It is an arithmetic number, because the mean of its divisors is an integer number (5076960).

Almost surely, 2^51131676 is an apocalyptic number.

It is an amenable number.

51131676 is an abundant number, since it is smaller than the sum of its proper divisors (70715364).

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

51131676 is a wasteful number, since it uses less digits than its factorization.

51131676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90713 (or 90711 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 51131676 is about 7150.6416495305. The cubic root of 51131676 is about 371.1618602900.

The spelling of 51131676 in words is "fifty-one million, one hundred thirty-one thousand, six hundred seventy-six".