625647456 has 384 divisors, whose sum is σ = 2229534720. Its totient is φ = 166924800.

The previous prime is 625647433. The next prime is 625647499. The reversal of 625647456 is 654746526.

Its product of digits (1209600) is a multiple of the sum of its prime factors (175).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8811901 + ... + 8811971.

It is an arithmetic number, because the mean of its divisors is an integer number (5806080).

Almost surely, 2^625647456 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 625647456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1114767360).

625647456 is an abundant number, since it is smaller than the sum of its proper divisors (1603887264).

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

625647456 is a wasteful number, since it uses less digits than its factorization.

625647456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 161 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 625647456 is about 25012.9457681417. The cubic root of 625647456 is about 855.2831072322.

The spelling of 625647456 in words is "six hundred twenty-five million, six hundred forty-seven thousand, four hundred fifty-six".