425520615 has 32 divisors (see below), whose sum is σ = 734630400. Its totient is φ = 209079936.

The previous prime is 425520581. The next prime is 425520617. The reversal of 425520615 is 516025524.

It is not a de Polignac number, because 425520615 - 2¹¹ = 425518567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425520617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114984 + ... + 118626.

It is an arithmetic number, because the mean of its divisors is an integer number (22957200).

Almost surely, 2^425520615 is an apocalyptic number.

425520615 is a deficient number, since it is larger than the sum of its proper divisors (309109785).

425520615 is a wasteful number, since it uses less digits than its factorization.

425520615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 425520615 is about 20628.1510320242. The cubic root of 425520615 is about 752.1541712490.

The spelling of 425520615 in words is "four hundred twenty-five million, five hundred twenty thousand, six hundred fifteen".