5315621331 has 8 divisors (see below), whose sum is σ = 7087854544. Its totient is φ = 3543567840.

The previous prime is 5315621327. The next prime is 5315621347. The reversal of 5315621331 is 1331265135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5315621331 - 2² = 5315621327 is a prime.

It is a super-2 number, since 2×5315621331² = 56511660269164423122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5315621321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57345 + ... + 117981.

It is an arithmetic number, because the mean of its divisors is an integer number (885981818).

Almost surely, 2^5315621331 is an apocalyptic number.

5315621331 is a deficient number, since it is larger than the sum of its proper divisors (1772233213).

5315621331 is a wasteful number, since it uses less digits than its factorization.

5315621331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89861.

The product of its digits is 8100, while the sum is 30.

The square root of 5315621331 is about 72908.3076953512. The cubic root of 5315621331 is about 1745.2246770527.

Adding to 5315621331 its reverse (1331265135), we get a palindrome (6646886466).

The spelling of 5315621331 in words is "five billion, three hundred fifteen million, six hundred twenty-one thousand, three hundred thirty-one".