625247946 has 48 divisors (see below), whose sum is σ = 1404453960. Its totient is φ = 200793600.

The previous prime is 625247929. The next prime is 625247989. The reversal of 625247946 is 649742526.

It can be written as a sum of positive squares in 4 ways, for example, as 621953721 + 3294225 = 24939^2 + 1815^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 312726 + ... + 314718.

Almost surely, 2^625247946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625247946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702226980).

625247946 is an abundant number, since it is smaller than the sum of its proper divisors (779206014).

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

625247946 is a wasteful number, since it uses less digits than its factorization.

625247946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631 (or 2628 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 625247946 is about 25004.9584282798. The cubic root of 625247946 is about 855.1010201762.

The spelling of 625247946 in words is "six hundred twenty-five million, two hundred forty-seven thousand, nine hundred forty-six".