5056535621 has 4 divisors (see below), whose sum is σ = 5062276044. Its totient is φ = 5050795200.

The previous prime is 5056535591. The next prime is 5056535629. The reversal of 5056535621 is 1265356505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1340292100 + 3716243521 = 36610^2 + 60961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5056535621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5056535629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2868890 + ... + 2870651.

It is an arithmetic number, because the mean of its divisors is an integer number (1265569011).

Almost surely, 2^5056535621 is an apocalyptic number.

It is an amenable number.

5056535621 is a deficient number, since it is larger than the sum of its proper divisors (5740423).

5056535621 is an equidigital number, since it uses as much as digits as its factorization.

5056535621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740422.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 5056535621 is about 71109.3216181957. The cubic root of 5056535621 is about 1716.3967769046.

The spelling of 5056535621 in words is "five billion, fifty-six million, five hundred thirty-five thousand, six hundred twenty-one".