5621250625 has 15 divisors (see below), whose sum is σ = 7026657781. Its totient is φ = 4495501000.

The previous prime is 5621250611. The next prime is 5621250629. The reversal of 5621250625 is 5260521265.

The square root of 5621250625 is 74975.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 440706049 + 5180544576 = 20993^2 + 71976^2 .

It is not a de Polignac number, because 5621250625 - 2⁷ = 5621250497 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621250629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1872876 + ... + 1875874.

Almost surely, 2^5621250625 is an apocalyptic number.

5621250625 is the 74975-th square number.

5621250625 is the 37488-th centered octagonal number.

It is an amenable number.

5621250625 is a deficient number, since it is larger than the sum of its proper divisors (1405407156).

5621250625 is an frugal number, since it uses more digits than its factorization.

5621250625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The cubic root of 5621250625 is about 1778.0514199185.

The spelling of 5621250625 in words is "five billion, six hundred twenty-one million, two hundred fifty thousand, six hundred twenty-five".