51236055063215 has 64 divisors (see below), whose sum is σ = 67718281236480. Its totient is φ = 36905299107840.

The previous prime is 51236055063203. The next prime is 51236055063229.

51236055063215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51236055063215 - 2⁴ = 51236055063199 is a prime.

It is a super-2 number, since 2×51236055063215² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7343561807 + ... + 7343568783.

It is an arithmetic number, because the mean of its divisors is an integer number (1058098144320).

Almost surely, 2^{51236055063215} is an apocalyptic number.

51236055063215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51236055063215 is a deficient number, since it is larger than the sum of its proper divisors (16482226173265).

51236055063215 is a wasteful number, since it uses less digits than its factorization.

51236055063215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 51236055063215 in words is "fifty-one trillion, two hundred thirty-six billion, fifty-five million, sixty-three thousand, two hundred fifteen".