25551356426241 has 4 divisors (see below), whose sum is σ = 34068475234992. Its totient is φ = 17034237617492.

The previous prime is 25551356426237. The next prime is 25551356426243. The reversal of 25551356426241 is 14262465315552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25551356426241 - 2² = 25551356426237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25551356426243) 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, 4258559404371 + ... + 4258559404376.

It is an arithmetic number, because the mean of its divisors is an integer number (8517118808748).

Almost surely, 2^{25551356426241} is an apocalyptic number.

It is an amenable number.

25551356426241 is a deficient number, since it is larger than the sum of its proper divisors (8517118808751).

25551356426241 is an equidigital number, since it uses as much as digits as its factorization.

25551356426241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517118808750.

The product of its digits is 8640000, while the sum is 51.

The spelling of 25551356426241 in words is "twenty-five trillion, five hundred fifty-one billion, three hundred fifty-six million, four hundred twenty-six thousand, two hundred forty-one".