625053915 has 40 divisors (see below), whose sum is σ = 1122279840. Its totient is φ = 332823168.

The previous prime is 625053883. The next prime is 625053917. The reversal of 625053915 is 519350526.

625053915 is a `hidden beast` number, since 62 + 50 + 539 + 15 = 666.

It is not a de Polignac number, because 625053915 - 2⁵ = 625053883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625053915.

It is not an unprimeable number, because it can be changed into a prime (625053917) 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 in 39 ways as a sum of consecutive naturals, for example, 456562 + ... + 457928.

It is an arithmetic number, because the mean of its divisors is an integer number (28056996).

Almost surely, 2^625053915 is an apocalyptic number.

625053915 is a deficient number, since it is larger than the sum of its proper divisors (497225925).

625053915 is a wasteful number, since it uses less digits than its factorization.

625053915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 625053915 is about 25001.0782767464. The cubic root of 625053915 is about 855.0125575256.

The spelling of 625053915 in words is "six hundred twenty-five million, fifty-three thousand, nine hundred fifteen".