25044521041 has 4 divisors (see below), whose sum is σ = 25044971584. Its totient is φ = 25044070500.

The previous prime is 25044521027. The next prime is 25044521069. The reversal of 25044521041 is 14012544052.

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 a de Polignac number, because none of the positive numbers 2^k-25044521041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25044521071) 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, 127845 + ... + 257746.

It is an arithmetic number, because the mean of its divisors is an integer number (6261242896).

Almost surely, 2^25044521041 is an apocalyptic number.

It is an amenable number.

25044521041 is a deficient number, since it is larger than the sum of its proper divisors (450543).

25044521041 is an equidigital number, since it uses as much as digits as its factorization.

25044521041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450542.

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 25044521041 in words is "twenty-five billion, forty-four million, five hundred twenty-one thousand, forty-one".