51224251130 has 16 divisors (see below), whose sum is σ = 99296240904. Its totient is φ = 18913569600.

The previous prime is 51224251109. The next prime is 51224251147. The reversal of 51224251130 is 3115242215.

It can be written as a sum of positive squares in 4 ways, for example, as 47544494209 + 3679756921 = 218047^2 + 60661^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 51224251130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197016221 + ... + 197016480.

Almost surely, 2^51224251130 is an apocalyptic number.

51224251130 is a deficient number, since it is larger than the sum of its proper divisors (48071989774).

51224251130 is a wasteful number, since it uses less digits than its factorization.

51224251130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394032721.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51224251130 its reverse (3115242215), we get a palindrome (54339493345).

The spelling of 51224251130 in words is "fifty-one billion, two hundred twenty-four million, two hundred fifty-one thousand, one hundred thirty".