625525632 has 128 divisors (see below), whose sum is σ = 1885939200. Its totient is φ = 204019200.

The previous prime is 625525627. The next prime is 625525633. The reversal of 625525632 is 236525526.

625525632 is a `hidden beast` number, since 625 + 5 + 25 + 6 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625525633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160507 + ... + 164357.

It is an arithmetic number, because the mean of its divisors is an integer number (14733900).

Almost surely, 2^625525632 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 625525632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942969600).

625525632 is an abundant number, since it is smaller than the sum of its proper divisors (1260413568).

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

625525632 is a wasteful number, since it uses less digits than its factorization.

625525632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3903 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 625525632 is about 25010.5104306170. The cubic root of 625525632 is about 855.2275909977.

The spelling of 625525632 in words is "six hundred twenty-five million, five hundred twenty-five thousand, six hundred thirty-two".