5597946521 has 4 divisors (see below), whose sum is σ = 5734481844. Its totient is φ = 5461411200.

The previous prime is 5597946503. The next prime is 5597946553. The reversal of 5597946521 is 1256497955.

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 576240025 + 5021706496 = 24005^2 + 70864^2 .

It is a cyclic number.

It is not a de Polignac number, because 5597946521 - 2¹⁸ = 5597684377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5597946581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68267600 + ... + 68267681.

It is an arithmetic number, because the mean of its divisors is an integer number (1433620461).

Almost surely, 2^5597946521 is an apocalyptic number.

It is an amenable number.

5597946521 is a deficient number, since it is larger than the sum of its proper divisors (136535323).

5597946521 is a wasteful number, since it uses less digits than its factorization.

5597946521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136535322.

The product of its digits is 3402000, while the sum is 53.

The square root of 5597946521 is about 74819.4260937626. The cubic root of 5597946521 is about 1775.5909183507.

The spelling of 5597946521 in words is "five billion, five hundred ninety-seven million, nine hundred forty-six thousand, five hundred twenty-one".