625604100 has 144 divisors (see below), whose sum is σ = 1995247296. Its totient is φ = 150080000.

The previous prime is 625604099. The next prime is 625604101. The reversal of 625604100 is 1406526.

It is an interprime number because it is at equal distance from previous prime (625604099) and next prime (625604101).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625604101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 332362 + ... + 334238.

It is an arithmetic number, because the mean of its divisors is an integer number (13855884).

Almost surely, 2^625604100 is an apocalyptic number.

625604100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625604100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997623648).

625604100 is an abundant number, since it is smaller than the sum of its proper divisors (1369643196).

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

625604100 is a wasteful number, since it uses less digits than its factorization.

625604100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 625604100 is about 25012.0790819156. The cubic root of 625604100 is about 855.2633503598.

The spelling of 625604100 in words is "six hundred twenty-five million, six hundred four thousand, one hundred".