51325995331 has 16 divisors (see below), whose sum is σ = 56911249024. Its totient is φ = 45981074304.

The previous prime is 51325995323. The next prime is 51325995367. The reversal of 51325995331 is 13359952315.

It is a cyclic number.

It is not a de Polignac number, because 51325995331 - 2³ = 51325995323 is a prime.

It is a super-2 number, since 2×51325995331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51325995311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56566 + ... + 325348.

It is an arithmetic number, because the mean of its divisors is an integer number (3556953064).

Almost surely, 2^51325995331 is an apocalyptic number.

51325995331 is a deficient number, since it is larger than the sum of its proper divisors (5585253693).

51325995331 is a wasteful number, since it uses less digits than its factorization.

51325995331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269230.

The product of its digits is 546750, while the sum is 46.

The spelling of 51325995331 in words is "fifty-one billion, three hundred twenty-five million, nine hundred ninety-five thousand, three hundred thirty-one".