625458228 has 48 divisors (see below), whose sum is σ = 1537159680. Its totient is φ = 197548384.

The previous prime is 625458217. The next prime is 625458257. The reversal of 625458228 is 822854526.

625458228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 625458228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18943 + ... + 40121.

It is an arithmetic number, because the mean of its divisors is an integer number (32024160).

Almost surely, 2^625458228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625458228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768579840).

625458228 is an abundant number, since it is smaller than the sum of its proper divisors (911701452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625458228 is a wasteful number, since it uses less digits than its factorization.

625458228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21316 (or 21314 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 625458228 is about 25009.1628808323. The cubic root of 625458228 is about 855.1968713233.

The spelling of 625458228 in words is "six hundred twenty-five million, four hundred fifty-eight thousand, two hundred twenty-eight".