25000255553 has 12 divisors (see below), whose sum is σ = 31319002260. Its totient is φ = 19780421472.

The previous prime is 25000255541. The next prime is 25000255603. The reversal of 25000255553 is 35555200052.

It can be written as a sum of positive squares in 2 ways, for example, as 16618303744 + 8381951809 = 128912^2 + 91553^2 .

It is not a de Polignac number, because 25000255553 - 2⁸ = 25000255297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25000255153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19622798 + ... + 19624071.

It is an arithmetic number, because the mean of its divisors is an integer number (2609916855).

Almost surely, 2^25000255553 is an apocalyptic number.

It is an amenable number.

25000255553 is a deficient number, since it is larger than the sum of its proper divisors (6318746707).

25000255553 is a wasteful number, since it uses less digits than its factorization.

25000255553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39246896 (or 39246889 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 25000255553 in words is "twenty-five billion, two hundred fifty-five thousand, five hundred fifty-three".