625201920 has 216 divisors, whose sum is σ = 2472471456. Its totient is φ = 142884864.

The previous prime is 625201909. The next prime is 625201921. The reversal of 625201920 is 29102526.

625201920 is a `hidden beast` number, since 625 + 2 + 0 + 19 + 20 = 666.

It is not an unprimeable number, because it can be changed into a prime (625201921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76764 + ... + 84516.

Almost surely, 2^625201920 is an apocalyptic number.

625201920 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 625201920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236235728).

625201920 is an abundant number, since it is smaller than the sum of its proper divisors (1847269536).

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

625201920 is a wasteful number, since it uses less digits than its factorization.

625201920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787 (or 7770 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 625201920 is about 25004.0380738792. The cubic root of 625201920 is about 855.0800376494.

The spelling of 625201920 in words is "six hundred twenty-five million, two hundred one thousand, nine hundred twenty".