25955655701 has 4 divisors (see below), whose sum is σ = 25970634732. Its totient is φ = 25940676672.

The previous prime is 25955655697. The next prime is 25955655703. The reversal of 25955655701 is 10755655952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8916269476 + 17039386225 = 94426^2 + 130535^2 .

It is a cyclic number.

It is not a de Polignac number, because 25955655701 - 2² = 25955655697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25955655701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25955655703) 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, 7486916 + ... + 7490381.

It is an arithmetic number, because the mean of its divisors is an integer number (6492658683).

Almost surely, 2^25955655701 is an apocalyptic number.

It is an amenable number.

25955655701 is a deficient number, since it is larger than the sum of its proper divisors (14979031).

25955655701 is a wasteful number, since it uses less digits than its factorization.

25955655701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979030.

The product of its (nonzero) digits is 2362500, while the sum is 50.

The spelling of 25955655701 in words is "twenty-five billion, nine hundred fifty-five million, six hundred fifty-five thousand, seven hundred one".