425645526 has 32 divisors (see below), whose sum is σ = 866509920. Its totient is φ = 139366656.

The previous prime is 425645513. The next prime is 425645533. The reversal of 425645526 is 625546524.

It is a super-2 number, since 2×425645526² = 362348227607633352, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81300 + ... + 86376.

It is an arithmetic number, because the mean of its divisors is an integer number (27078435).

Almost surely, 2^425645526 is an apocalyptic number.

425645526 is an abundant number, since it is smaller than the sum of its proper divisors (440864394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425645526 is a wasteful number, since it uses less digits than its factorization.

425645526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328.

The product of its digits is 288000, while the sum is 39.

The square root of 425645526 is about 20631.1784927570. The cubic root of 425645526 is about 752.2277619946.

The spelling of 425645526 in words is "four hundred twenty-five million, six hundred forty-five thousand, five hundred twenty-six".