5124984921 has 45 divisors (see below), whose sum is σ = 8653804341. Its totient is φ = 2922549336.

The previous prime is 5124984919. The next prime is 5124984961. The reversal of 5124984921 is 1294894215.

It is a happy number.

The square root of 5124984921 is 71589.

It is a perfect power (a square), and thus also a powerful number.

5124984921 is a `hidden beast` number, since 51 + 24 + 98 + 492 + 1 = 666.

It is not a de Polignac number, because 5124984921 - 2¹ = 5124984919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5124984901) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 10523340 + ... + 10523826.

Almost surely, 2^5124984921 is an apocalyptic number.

5124984921 is the 71589-th square number.

5124984921 is the 35795-th centered octagonal number.

It is an amenable number.

5124984921 is a deficient number, since it is larger than the sum of its proper divisors (3528819420).

5124984921 is an frugal number, since it uses more digits than its factorization.

5124984921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 497 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The cubic root of 5124984921 is about 1724.1069292737.

The spelling of 5124984921 in words is "five billion, one hundred twenty-four million, nine hundred eighty-four thousand, nine hundred twenty-one".