25404261045 has 16 divisors (see below), whose sum is σ = 40662145152. Its totient is φ = 13543830080.

The previous prime is 25404261023. The next prime is 25404261053. The reversal of 25404261045 is 54016240452.

It is not a de Polignac number, because 25404261045 - 2¹² = 25404256949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25404260997 and 25404261015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278046 + ... + 357935.

It is an arithmetic number, because the mean of its divisors is an integer number (2541384072).

Almost surely, 2^25404261045 is an apocalyptic number.

It is an amenable number.

25404261045 is a deficient number, since it is larger than the sum of its proper divisors (15257884107).

25404261045 is a wasteful number, since it uses less digits than its factorization.

25404261045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638652.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 25404261045 in words is "twenty-five billion, four hundred four million, two hundred sixty-one thousand, forty-five".