25328860265 has 8 divisors (see below), whose sum is σ = 30397125960. Its totient is φ = 20261425792.

The previous prime is 25328860241. The next prime is 25328860273. The reversal of 25328860265 is 56206882352.

It can be written as a sum of positive squares in 4 ways, for example, as 16194853081 + 9134007184 = 127259^2 + 95572^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25328860265 - 2¹² = 25328856169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138674 + ... + 264363.

It is an arithmetic number, because the mean of its divisors is an integer number (3799640745).

Almost surely, 2^25328860265 is an apocalyptic number.

It is an amenable number.

25328860265 is a deficient number, since it is larger than the sum of its proper divisors (5068265695).

25328860265 is a wasteful number, since it uses less digits than its factorization.

25328860265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415611.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 25328860265 in words is "twenty-five billion, three hundred twenty-eight million, eight hundred sixty thousand, two hundred sixty-five".