25451025041 has 4 divisors (see below), whose sum is σ = 27408796212. Its totient is φ = 23493253872.

The previous prime is 25451025001. The next prime is 25451025071. The reversal of 25451025041 is 14052015452.

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 10101054016 + 15349971025 = 100504^2 + 123895^2 .

It is a cyclic number.

It is not a de Polignac number, because 25451025041 - 2²² = 25446830737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25451024995 and 25451025013.

It is not an unprimeable number, because it can be changed into a prime (25451025001) 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, 978885566 + ... + 978885591.

It is an arithmetic number, because the mean of its divisors is an integer number (6852199053).

Almost surely, 2^25451025041 is an apocalyptic number.

It is an amenable number.

25451025041 is a deficient number, since it is larger than the sum of its proper divisors (1957771171).

25451025041 is a wasteful number, since it uses less digits than its factorization.

25451025041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957771170.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25451025041 in words is "twenty-five billion, four hundred fifty-one million, twenty-five thousand, forty-one".