625255566320 has 240 divisors, whose sum is σ = 1846179524448. Its totient is φ = 194738503680.

The previous prime is 625255566181. The next prime is 625255566391. The reversal of 625255566320 is 23665552526.

It is a super-3 number, since 3×625255566320³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66960692 + ... + 66970028.

Almost surely, 2^625255566320 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 625255566320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923089762224).

625255566320 is an abundant number, since it is smaller than the sum of its proper divisors (1220923958128).

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

625255566320 is a wasteful number, since it uses less digits than its factorization.

625255566320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928 (or 10915 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 625255566320 in words is "six hundred twenty-five billion, two hundred fifty-five million, five hundred sixty-six thousand, three hundred twenty".