25502055045 has 24 divisors (see below), whose sum is σ = 43344676704. Its totient is φ = 12801029376.

The previous prime is 25502054971. The next prime is 25502055071. The reversal of 25502055045 is 54055020552.

It is not a de Polignac number, because 25502055045 - 2⁷ = 25502054917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25502054997 and 25502055015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2937079 + ... + 2945748.

It is an arithmetic number, because the mean of its divisors is an integer number (1806028196).

Almost surely, 2^25502055045 is an apocalyptic number.

It is an amenable number.

25502055045 is a deficient number, since it is larger than the sum of its proper divisors (17842621659).

25502055045 is a wasteful number, since it uses less digits than its factorization.

25502055045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882869 (or 5882852 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

Adding to 25502055045 its reverse (54055020552), we get a palindrome (79557075597).

The spelling of 25502055045 in words is "twenty-five billion, five hundred two million, fifty-five thousand, forty-five".