5621331265 has 16 divisors (see below), whose sum is σ = 7791707520. Its totient is φ = 3847755520.

The previous prime is 5621331257. The next prime is 5621331269.

5621331265 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5621331265 - 2³ = 5621331257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5621331265.

It is not an unprimeable number, because it can be changed into a prime (5621331269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3005125 + ... + 3006994.

It is an arithmetic number, because the mean of its divisors is an integer number (486981720).

Almost surely, 2^5621331265 is an apocalyptic number.

5621331265 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5621331265 is a deficient number, since it is larger than the sum of its proper divisors (2170376255).

5621331265 is a wasteful number, since it uses less digits than its factorization.

5621331265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6012152.

The product of its digits is 32400, while the sum is 34.

The square root of 5621331265 is about 74975.5377773311. The cubic root of 5621331265 is about 1778.0599222602.

It can be divided in two parts, 56213 and 31265, that added together give a palindrome (87478).

The spelling of 5621331265 in words is "five billion, six hundred twenty-one million, three hundred thirty-one thousand, two hundred sixty-five".