625145472 has 128 divisors (see below), whose sum is σ = 2108707200. Its totient is φ = 178606080.

The previous prime is 625145453. The next prime is 625145527. The reversal of 625145472 is 274541526.

It is a happy number.

625145472 is a `hidden beast` number, since 62 + 51 + 4 + 547 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×625145472² = 781613722324205568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11272 + ... + 37112.

It is an arithmetic number, because the mean of its divisors is an integer number (16474275).

Almost surely, 2^625145472 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 625145472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054353600).

625145472 is an abundant number, since it is smaller than the sum of its proper divisors (1483561728).

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

625145472 is a wasteful number, since it uses less digits than its factorization.

625145472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25871 (or 25853 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 625145472 is about 25002.9092707229. The cubic root of 625145472 is about 855.0543024914.

Adding to 625145472 its reverse (274541526), we get a palindrome (899686998).

It can be divided in two parts, 6251454 and 72, that added together give a palindrome (6251526).

The spelling of 625145472 in words is "six hundred twenty-five million, one hundred forty-five thousand, four hundred seventy-two".