5621121315 has 24 divisors (see below), whose sum is σ = 10316412288. Its totient is φ = 2821582080.

The previous prime is 5621121307. The next prime is 5621121343. The reversal of 5621121315 is 5131211265.

5621121315 is a `hidden beast` number, since 5 + 621 + 1 + 2 + 1 + 31 + 5 = 666.

It is not a de Polignac number, because 5621121315 - 2³ = 5621121307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3673171 + ... + 3674700.

It is an arithmetic number, because the mean of its divisors is an integer number (429850512).

Almost surely, 2^5621121315 is an apocalyptic number.

5621121315 is a deficient number, since it is larger than the sum of its proper divisors (4695290973).

5621121315 is a wasteful number, since it uses less digits than its factorization.

5621121315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347899 (or 7347896 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5621121315 is about 74974.1376409226. The cubic root of 5621121315 is about 1778.0377858474.

The spelling of 5621121315 in words is "five billion, six hundred twenty-one million, one hundred twenty-one thousand, three hundred fifteen".