25730824607 has 4 divisors (see below), whose sum is σ = 25731152040. Its totient is φ = 25730497176.

The previous prime is 25730824597. The next prime is 25730824619. The reversal of 25730824607 is 70642803752.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25730824607 - 2³⁴ = 8550955423 is a prime.

It is a deceptive number, since it divides R_25730824606.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25730824697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32744 + ... + 229202.

It is an arithmetic number, because the mean of its divisors is an integer number (6432788010).

Almost surely, 2^25730824607 is an apocalyptic number.

25730824607 is the 130973-rd pentagonal number.

25730824607 is a deficient number, since it is larger than the sum of its proper divisors (327433).

25730824607 is a wasteful number, since it uses less digits than its factorization.

25730824607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327432.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 25730824607 in words is "twenty-five billion, seven hundred thirty million, eight hundred twenty-four thousand, six hundred seven".