425625615 has 48 divisors (see below), whose sum is σ = 765494496. Its totient is φ = 218592000.

The previous prime is 425625611. The next prime is 425625619. The reversal of 425625615 is 516526524.

425625615 is a `hidden beast` number, since 4 + 25 + 625 + 6 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (425625611) and next prime (425625619).

It is not a de Polignac number, because 425625615 - 2² = 425625611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425625615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425625611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166900 + ... + 169430.

It is an arithmetic number, because the mean of its divisors is an integer number (15947802).

Almost surely, 2^425625615 is an apocalyptic number.

425625615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

425625615 is a deficient number, since it is larger than the sum of its proper divisors (339868881).

425625615 is a wasteful number, since it uses less digits than its factorization.

425625615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 2677 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 425625615 is about 20630.6959407578. The cubic root of 425625615 is about 752.2160324845.

Subtracting 425625615 from its reverse (516526524), we obtain a palindrome (90900909).

The spelling of 425625615 in words is "four hundred twenty-five million, six hundred twenty-five thousand, six hundred fifteen".