4256996525 has 6 divisors (see below), whose sum is σ = 5278675722. Its totient is φ = 3405597200.

The previous prime is 4256996519. The next prime is 4256996543. The reversal of 4256996525 is 5256996524.

It can be written as a sum of positive squares in 3 ways, for example, as 578210116 + 3678786409 = 24046^2 + 60653^2 .

It is not a de Polignac number, because 4256996525 - 2²⁶ = 4189887661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85139906 + ... + 85139955.

It is an arithmetic number, because the mean of its divisors is an integer number (879779287).

Almost surely, 2^4256996525 is an apocalyptic number.

It is an amenable number.

4256996525 is a deficient number, since it is larger than the sum of its proper divisors (1021679197).

4256996525 is a wasteful number, since it uses less digits than its factorization.

4256996525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170279871 (or 170279866 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 53.

The square root of 4256996525 is about 65245.6628826775. The cubic root of 4256996525 is about 1620.6942770468.

Subtracting 4256996525 from its reverse (5256996524), we obtain a palindrome (999999999).

The spelling of 4256996525 in words is "four billion, two hundred fifty-six million, nine hundred ninety-six thousand, five hundred twenty-five".