425661895 has 16 divisors (see below), whose sum is σ = 545814720. Its totient is φ = 317551104.

The previous prime is 425661893. The next prime is 425661911. The reversal of 425661895 is 598166524.

It is a cyclic number.

It is not a de Polignac number, because 425661895 - 2¹ = 425661893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425661893) 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, 13707 + ... + 32236.

It is an arithmetic number, because the mean of its divisors is an integer number (34113420).

Almost surely, 2^425661895 is an apocalyptic number.

425661895 is a deficient number, since it is larger than the sum of its proper divisors (120152825).

425661895 is a wasteful number, since it uses less digits than its factorization.

425661895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46074.

The product of its digits is 518400, while the sum is 46.

The square root of 425661895 is about 20631.5751943471. The cubic root of 425661895 is about 752.2374046492.

The spelling of 425661895 in words is "four hundred twenty-five million, six hundred sixty-one thousand, eight hundred ninety-five".