3125580521 has 4 divisors (see below), whose sum is σ = 3572092032. Its totient is φ = 2679069012.

The previous prime is 3125580481. The next prime is 3125580659. The reversal of 3125580521 is 1250855213.

3125580521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3125580521 - 2¹⁰ = 3125579497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3125580121) 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, 223255745 + ... + 223255758.

It is an arithmetic number, because the mean of its divisors is an integer number (893023008).

Almost surely, 2^3125580521 is an apocalyptic number.

It is an amenable number.

3125580521 is a deficient number, since it is larger than the sum of its proper divisors (446511511).

3125580521 is an equidigital number, since it uses as much as digits as its factorization.

3125580521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446511510.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 3125580521 is about 55906.8915340497. The cubic root of 3125580521 is about 1462.0993943652.

The spelling of 3125580521 in words is "three billion, one hundred twenty-five million, five hundred eighty thousand, five hundred twenty-one".