625063647 has 16 divisors (see below), whose sum is σ = 904601600. Its totient is φ = 381622752.

The previous prime is 625063619. The next prime is 625063687. The reversal of 625063647 is 746360526.

It is not a de Polignac number, because 625063647 - 2⁶ = 625063583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625063687) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58147 + ... + 68052.

It is an arithmetic number, because the mean of its divisors is an integer number (56537600).

Almost surely, 2^625063647 is an apocalyptic number.

625063647 is a deficient number, since it is larger than the sum of its proper divisors (279537953).

625063647 is a wasteful number, since it uses less digits than its factorization.

625063647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126342.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 625063647 is about 25001.2729075941. The cubic root of 625063647 is about 855.0169949770.

The spelling of 625063647 in words is "six hundred twenty-five million, sixty-three thousand, six hundred forty-seven".