25250572897 has 16 divisors (see below), whose sum is σ = 27634400640. Its totient is φ = 22881577600.

The previous prime is 25250572891. The next prime is 25250572913. The reversal of 25250572897 is 79827505252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25250572897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25250572891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6534588 + ... + 6538450.

It is an arithmetic number, because the mean of its divisors is an integer number (1727150040).

Almost surely, 2^25250572897 is an apocalyptic number.

It is an amenable number.

25250572897 is a deficient number, since it is larger than the sum of its proper divisors (2383827743).

25250572897 is a wasteful number, since it uses less digits than its factorization.

25250572897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 25250572897 in words is "twenty-five billion, two hundred fifty million, five hundred seventy-two thousand, eight hundred ninety-seven".