25261787007959 has 8 divisors (see below), whose sum is σ = 26606575933440. Its totient is φ = 23918520201336.

The previous prime is 25261787007943. The next prime is 25261787007973. The reversal of 25261787007959 is 95970078716252.

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 25261787007959 - 2⁴ = 25261787007943 is a prime.

It is a super-2 number, since 2×25261787007959² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25261787007929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380495639 + ... + 380562024.

It is an arithmetic number, because the mean of its divisors is an integer number (3325821991680).

Almost surely, 2^{25261787007959} is an apocalyptic number.

25261787007959 is a deficient number, since it is larger than the sum of its proper divisors (1344788925481).

25261787007959 is a wasteful number, since it uses less digits than its factorization.

25261787007959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761059429.

The product of its (nonzero) digits is 133358400, while the sum is 68.

The spelling of 25261787007959 in words is "twenty-five trillion, two hundred sixty-one billion, seven hundred eighty-seven million, seven thousand, nine hundred fifty-nine".