65743524025 has 27 divisors (see below), whose sum is σ = 86070312111. Its totient is φ = 49808209680.

The previous prime is 65743524013. The next prime is 65743524043. The reversal of 65743524025 is 52042534756.

The square root of 65743524025 is 256405.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23667668649 + 42075855376 = 153843^2 + 205124^2 .

It is not a de Polignac number, because 65743524025 - 2²¹ = 65741426873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24357126 + ... + 24359824.

Almost surely, 2^65743524025 is an apocalyptic number.

65743524025 is the 256405-th square number.

65743524025 is the 128203-rd centered octagonal number.

It is an amenable number.

65743524025 is a deficient number, since it is larger than the sum of its proper divisors (20326788086).

65743524025 is an frugal number, since it uses more digits than its factorization.

65743524025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 65743524025 in words is "sixty-five billion, seven hundred forty-three million, five hundred twenty-four thousand, twenty-five".