51113031532 has 12 divisors (see below), whose sum is σ = 89449412976. Its totient is φ = 25556056400.

The previous prime is 51113031517. The next prime is 51113031533. The reversal of 51113031532 is 23513031115.

It is a super-2 number, since 2×51113031532² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51113031497 and 51113031506.

It is not an unprimeable number, because it can be changed into a prime (51113031533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310782 + ... + 445882.

It is an arithmetic number, because the mean of its divisors is an integer number (7454117748).

Almost surely, 2^51113031532 is an apocalyptic number.

It is an amenable number.

51113031532 is a deficient number, since it is larger than the sum of its proper divisors (38336381444).

51113031532 is a wasteful number, since it uses less digits than its factorization.

51113031532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229688 (or 229686 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 51113031532 its reverse (23513031115), we get a palindrome (74626062647).

The spelling of 51113031532 in words is "fifty-one billion, one hundred thirteen million, thirty-one thousand, five hundred thirty-two".