51013531224 has 96 divisors (see below), whose sum is σ = 145696590000. Its totient is φ = 16080374016.

The previous prime is 51013531223. The next prime is 51013531267. The reversal of 51013531224 is 42213531015.

51013531224 is a `hidden beast` number, since 5 + 101 + 3 + 531 + 2 + 24 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51013531223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 728502 + ... + 795450.

Almost surely, 2^51013531224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51013531224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72848295000).

51013531224 is an abundant number, since it is smaller than the sum of its proper divisors (94683058776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51013531224 is a wasteful number, since it uses less digits than its factorization.

51013531224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67537 (or 67530 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 51013531224 in words is "fifty-one billion, thirteen million, five hundred thirty-one thousand, two hundred twenty-four".