625652280 has 288 divisors, whose sum is σ = 2285599680. Its totient is φ = 148262400.

The previous prime is 625652249. The next prime is 625652281. The reversal of 625652280 is 82256526.

625652280 is a `hidden beast` number, since 6 + 2 + 56 + 522 + 80 = 666.

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 (625652281) 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 71 ways as a sum of consecutive naturals, for example, 2308545 + ... + 2308815.

It is an arithmetic number, because the mean of its divisors is an integer number (7936110).

Almost surely, 2^625652280 is an apocalyptic number.

625652280 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 625652280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142799840).

625652280 is an abundant number, since it is smaller than the sum of its proper divisors (1659947400).

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

625652280 is a wasteful number, since it uses less digits than its factorization.

625652280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 625652280 is about 25013.0421980214. The cubic root of 625652280 is about 855.2853054218.

The spelling of 625652280 in words is "six hundred twenty-five million, six hundred fifty-two thousand, two hundred eighty".