625480221 has 4 divisors (see below), whose sum is σ = 833973632. Its totient is φ = 416986812.

The previous prime is 625480217. The next prime is 625480231. The reversal of 625480221 is 122084526.

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 not a de Polignac number, because 625480221 - 2² = 625480217 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 (625480231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104246701 + ... + 104246706.

It is an arithmetic number, because the mean of its divisors is an integer number (208493408).

Almost surely, 2^625480221 is an apocalyptic number.

It is an amenable number.

625480221 is a deficient number, since it is larger than the sum of its proper divisors (208493411).

625480221 is a wasteful number, since it uses less digits than its factorization.

625480221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208493410.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 625480221 is about 25009.6025758108. The cubic root of 625480221 is about 855.2068949739.

The spelling of 625480221 in words is "six hundred twenty-five million, four hundred eighty thousand, two hundred twenty-one".