50251435413613 has 6 divisors (see below), whose sum is σ = 58455751399566. Its totient is φ = 43072658925912.

The previous prime is 50251435413601. The next prime is 50251435413643. The reversal of 50251435413613 is 31631453415205.

It can be written as a sum of positive squares in only one way, i.e., 45931347989289 + 4320087424324 = 6777267^2 + 2078482^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50251435413613 is a prime.

It is a super-2 number, since 2×50251435413613² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50251435413613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50251435413643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512769749070 + ... + 512769749167.

It is an arithmetic number, because the mean of its divisors is an integer number (9742625233261).

Almost surely, 2^{50251435413613} is an apocalyptic number.

It is an amenable number.

50251435413613 is a deficient number, since it is larger than the sum of its proper divisors (8204315985953).

50251435413613 is a wasteful number, since it uses less digits than its factorization.

50251435413613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025539498251 (or 1025539498244 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 50251435413613 its reverse (31631453415205), we get a palindrome (81882888828818).

The spelling of 50251435413613 in words is "fifty trillion, two hundred fifty-one billion, four hundred thirty-five million, four hundred thirteen thousand, six hundred thirteen".