5756345221 has 12 divisors (see below), whose sum is σ = 6330109996. Its totient is φ = 5230653120.

The previous prime is 5756345219. The next prime is 5756345249. The reversal of 5756345221 is 1225436575.

It can be written as a sum of positive squares in 2 ways, for example, as 2390721025 + 3365624196 = 48895^2 + 58014^2 .

It is not a de Polignac number, because 5756345221 - 2¹ = 5756345219 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5756345251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289615 + ... + 308851.

Almost surely, 2^5756345221 is an apocalyptic number.

It is an amenable number.

5756345221 is a deficient number, since it is larger than the sum of its proper divisors (573764775).

5756345221 is a wasteful number, since it uses less digits than its factorization.

5756345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21732 (or 21721 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 5756345221 is about 75870.5820525980. The cubic root of 5756345221 is about 1792.1826854447.

The spelling of 5756345221 in words is "five billion, seven hundred fifty-six million, three hundred forty-five thousand, two hundred twenty-one".