5731221375 has 96 divisors (see below), whose sum is σ = 11576245824. Its totient is φ = 2703456000.

The previous prime is 5731221359. The next prime is 5731221469.

It is a happy number.

5731221375 is a `hidden beast` number, since 573 + 1 + 2 + 2 + 13 + 75 = 666.

5731221375 is nontrivially palindromic in base 10.

5731221375 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5731221375 - 2⁴ = 5731221359 is a prime.

It is a super-3 number, since 3×5731221375³ (a number of 30 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 451617 + ... + 464133.

It is an arithmetic number, because the mean of its divisors is an integer number (120585894).

Almost surely, 2^5731221375 is an apocalyptic number.

5731221375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5731221375 is an abundant number, since it is smaller than the sum of its proper divisors (5845024449).

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

5731221375 is a wasteful number, since it uses less digits than its factorization.

5731221375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586 (or 12573 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 5731221375 is about 75704.8305922416. The cubic root of 5731221375 is about 1789.5715270232.

It can be divided in two parts, 57312 and 21375, that added together give a palindrome (78687).

The spelling of 5731221375 in words is "five billion, seven hundred thirty-one million, two hundred twenty-one thousand, three hundred seventy-five".