3565642525 has 6 divisors (see below), whose sum is σ = 4421396762. Its totient is φ = 2852514000.

The previous prime is 3565642523. The next prime is 3565642541. The reversal of 3565642525 is 5252465653.

3565642525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1162878201 + 2402764324 = 34101^2 + 49018^2 .

It is not a de Polignac number, because 3565642525 - 2¹ = 3565642523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3565642523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71312826 + ... + 71312875.

Almost surely, 2^3565642525 is an apocalyptic number.

It is an amenable number.

3565642525 is a deficient number, since it is larger than the sum of its proper divisors (855754237).

3565642525 is a wasteful number, since it uses less digits than its factorization.

3565642525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142625711 (or 142625706 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 43.

The square root of 3565642525 is about 59713.0013062482. The cubic root of 3565642525 is about 1527.7276311866.

The spelling of 3565642525 in words is "three billion, five hundred sixty-five million, six hundred forty-two thousand, five hundred twenty-five".