25540510531241 has 4 divisors (see below), whose sum is σ = 25544168065152. Its totient is φ = 25536852997332.

The previous prime is 25540510531231. The next prime is 25540510531247. The reversal of 25540510531241 is 14213501504552.

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 25540510531241 - 2¹⁰ = 25540510530217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25540510531195 and 25540510531204.

It is not an unprimeable number, because it can be changed into a prime (25540510531247) 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, 1828756481 + ... + 1828770446.

It is an arithmetic number, because the mean of its divisors is an integer number (6386042016288).

Almost surely, 2^{25540510531241} is an apocalyptic number.

It is an amenable number.

25540510531241 is a deficient number, since it is larger than the sum of its proper divisors (3657533911).

25540510531241 is an equidigital number, since it uses as much as digits as its factorization.

25540510531241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657533910.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 25540510531241 in words is "twenty-five trillion, five hundred forty billion, five hundred ten million, five hundred thirty-one thousand, two hundred forty-one".