625825899072 has 168 divisors, whose sum is σ = 1971177822432. Its totient is φ = 188259686400.

The previous prime is 625825899001. The next prime is 625825899089. The reversal of 625825899072 is 270998528526.

It is a super-2 number, since 2×625825899072² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 507547 + ... + 1228517.

It is an arithmetic number, because the mean of its divisors is an integer number (11733201324).

Almost surely, 2^625825899072 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 625825899072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985588911216).

625825899072 is an abundant number, since it is smaller than the sum of its proper divisors (1345351923360).

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

625825899072 is a wasteful number, since it uses less digits than its factorization.

625825899072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721137 (or 721124 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 625825899072 in words is "six hundred twenty-five billion, eight hundred twenty-five million, eight hundred ninety-nine thousand, seventy-two".