625648472 has 8 divisors (see below), whose sum is σ = 1173090900. Its totient is φ = 312824232.

The previous prime is 625648459. The next prime is 625648477. The reversal of 625648472 is 274846526.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625648477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39103022 + ... + 39103037.

Almost surely, 2^625648472 is an apocalyptic number.

It is an amenable number.

625648472 is a deficient number, since it is larger than the sum of its proper divisors (547442428).

625648472 is a wasteful number, since it uses less digits than its factorization.

625648472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78206065 (or 78206061 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 625648472 is about 25012.9660776166. The cubic root of 625648472 is about 855.2835702018.

The spelling of 625648472 in words is "six hundred twenty-five million, six hundred forty-eight thousand, four hundred seventy-two".