4253666526 has 24 divisors (see below), whose sum is σ = 9758412144. Its totient is φ = 1334483520.

The previous prime is 4253666449. The next prime is 4253666533. The reversal of 4253666526 is 6256663524.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 6950130 + ... + 6950741.

It is an arithmetic number, because the mean of its divisors is an integer number (406600506).

Almost surely, 2^4253666526 is an apocalyptic number.

4253666526 is an abundant number, since it is smaller than the sum of its proper divisors (5504745618).

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

4253666526 is a wasteful number, since it uses less digits than its factorization.

4253666526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13900896 (or 13900893 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 4253666526 is about 65220.1389602935. The cubic root of 4253666526 is about 1620.2715754127.

The spelling of 4253666526 in words is "four billion, two hundred fifty-three million, six hundred sixty-six thousand, five hundred twenty-six".