5113211553531 has 6 divisors (see below), whose sum is σ = 7385750021780. Its totient is φ = 3408807702348.

The previous prime is 5113211553509. The next prime is 5113211553547. The reversal of 5113211553531 is 1353551123115.

5113211553531 is a `hidden beast` number, since 5 + 1 + 1 + 3 + 2 + 115 + 5 + 3 + 531 = 666.

It is not a de Polignac number, because 5113211553531 - 2¹³ = 5113211545339 is a prime.

It is a super-2 number, since 2×5113211553531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5113211553731) 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, 284067308521 + ... + 284067308538.

Almost surely, 2^{5113211553531} is an apocalyptic number.

5113211553531 is a deficient number, since it is larger than the sum of its proper divisors (2272538468249).

5113211553531 is a wasteful number, since it uses less digits than its factorization.

5113211553531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568134617065 (or 568134617062 counting only the distinct ones).

The product of its digits is 33750, while the sum is 36.

Adding to 5113211553531 its reverse (1353551123115), we get a palindrome (6466762676646).

The spelling of 5113211553531 in words is "five trillion, one hundred thirteen billion, two hundred eleven million, five hundred fifty-three thousand, five hundred thirty-one".