25500560054 has 4 divisors (see below), whose sum is σ = 38250840084. Its totient is φ = 12750280026.

The previous prime is 25500560051. The next prime is 25500560081. The reversal of 25500560054 is 45006500552.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25500560054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500560051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375140012 + ... + 6375140015.

It is an arithmetic number, because the mean of its divisors is an integer number (9562710021).

Almost surely, 2^25500560054 is an apocalyptic number.

25500560054 is a deficient number, since it is larger than the sum of its proper divisors (12750280030).

25500560054 is a wasteful number, since it uses less digits than its factorization.

25500560054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750280029.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 25500560054 in words is "twenty-five billion, five hundred million, five hundred sixty thousand, fifty-four".