625172140 has 48 divisors (see below), whose sum is σ = 1363521600. Its totient is φ = 240488192.

The previous prime is 625172117. The next prime is 625172159. The reversal of 625172140 is 41271526.

625172140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 625172099 and 625172108.

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, 154017 + ... + 158023.

It is an arithmetic number, because the mean of its divisors is an integer number (28406700).

Almost surely, 2^625172140 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 625172140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681760800).

625172140 is an abundant number, since it is smaller than the sum of its proper divisors (738349460).

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

625172140 is a wasteful number, since it uses less digits than its factorization.

625172140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 625172140 is about 25003.4425629752. The cubic root of 625172140 is about 855.0664608689.

The spelling of 625172140 in words is "six hundred twenty-five million, one hundred seventy-two thousand, one hundred forty".