25525552775501 has 8 divisors (see below), whose sum is σ = 27493863455520. Its totient is φ = 23619728148912.

The previous prime is 25525552775477. The next prime is 25525552775521. The reversal of 25525552775501 is 10557725552552.

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 25525552775501 - 2³⁸ = 25250674868557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525552775521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15621512510 + ... + 15621514143.

It is an arithmetic number, because the mean of its divisors is an integer number (3436732931940).

Almost surely, 2^{25525552775501} is an apocalyptic number.

It is an amenable number.

25525552775501 is a deficient number, since it is larger than the sum of its proper divisors (1968310680019).

25525552775501 is a wasteful number, since it uses less digits than its factorization.

25525552775501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31243026715.

The product of its (nonzero) digits is 30625000, while the sum is 56.

The spelling of 25525552775501 in words is "twenty-five trillion, five hundred twenty-five billion, five hundred fifty-two million, seven hundred seventy-five thousand, five hundred one".