5604947521 has 2 divisors, whose sum is σ = 5604947522. Its totient is φ = 5604947520.

The previous prime is 5604947501. The next prime is 5604947539. The reversal of 5604947521 is 1257494065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4090881600 + 1514065921 = 63960^2 + 38911^2 .

It is a cyclic number.

It is not a de Polignac number, because 5604947521 - 2⁵ = 5604947489 is a prime.

It is not a weakly prime, because it can be changed into another prime (5604947501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802473760 + 2802473761.

It is an arithmetic number, because the mean of its divisors is an integer number (2802473761).

Almost surely, 2^5604947521 is an apocalyptic number.

It is an amenable number.

5604947521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5604947521 is an equidigital number, since it uses as much as digits as its factorization.

5604947521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5604947521 is about 74866.1974525219. The cubic root of 5604947521 is about 1776.3308166559.

The spelling of 5604947521 in words is "five billion, six hundred four million, nine hundred forty-seven thousand, five hundred twenty-one".