51031413015 has 96 divisors (see below), whose sum is σ = 92580461568. Its totient is φ = 23972256000.

The previous prime is 51031413011. The next prime is 51031413031.

51031413015 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51031413015 - 2² = 51031413011 is a prime.

It is a super-2 number, since 2×51031413015² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51031413011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8612844 + ... + 8618766.

It is an arithmetic number, because the mean of its divisors is an integer number (964379808).

Almost surely, 2^51031413015 is an apocalyptic number.

51031413015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51031413015 is a deficient number, since it is larger than the sum of its proper divisors (41549048553).

51031413015 is a wasteful number, since it uses less digits than its factorization.

51031413015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101 (or 6090 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 51031413015 in words is "fifty-one billion, thirty-one million, four hundred thirteen thousand, fifteen".