5121512724 has 48 divisors (see below), whose sum is σ = 12011753600. Its totient is φ = 1698402816.

The previous prime is 5121512713. The next prime is 5121512777. The reversal of 5121512724 is 4272151215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5121512691 and 5121512700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2153424 + ... + 2155800.

Almost surely, 2^5121512724 is an apocalyptic number.

It is an amenable number.

5121512724 is an abundant number, since it is smaller than the sum of its proper divisors (6890240876).

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

5121512724 is a wasteful number, since it uses less digits than its factorization.

5121512724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3230 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 5121512724 is about 71564.7449796337. The cubic root of 5121512724 is about 1723.7174782832.

Adding to 5121512724 its reverse (4272151215), we get a palindrome (9393663939).

The spelling of 5121512724 in words is "five billion, one hundred twenty-one million, five hundred twelve thousand, seven hundred twenty-four".