25280553053 has 4 divisors (see below), whose sum is σ = 28892060640. Its totient is φ = 21669045468.

The previous prime is 25280553049. The next prime is 25280553059. The reversal of 25280553053 is 35035508252.

It is a happy number.

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 not a de Polignac number, because 25280553053 - 2² = 25280553049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25280552998 and 25280553016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25280553059) 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, 1805753783 + ... + 1805753796.

It is an arithmetic number, because the mean of its divisors is an integer number (7223015160).

Almost surely, 2^25280553053 is an apocalyptic number.

It is an amenable number.

25280553053 is a deficient number, since it is larger than the sum of its proper divisors (3611507587).

25280553053 is an equidigital number, since it uses as much as digits as its factorization.

25280553053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611507586.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 25280553053 in words is "twenty-five billion, two hundred eighty million, five hundred fifty-three thousand, fifty-three".