25250505003 has 16 divisors (see below), whose sum is σ = 37966488960. Its totient is φ = 16582420008.

The previous prime is 25250504977. The next prime is 25250505013. The reversal of 25250505003 is 30050505252.

It is not a de Polignac number, because 25250505003 - 2⁹ = 25250504491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25250505013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6977325 + ... + 6980942.

It is an arithmetic number, because the mean of its divisors is an integer number (2372905560).

Almost surely, 2^25250505003 is an apocalyptic number.

25250505003 is a deficient number, since it is larger than the sum of its proper divisors (12715983957).

25250505003 is a wasteful number, since it uses less digits than its factorization.

25250505003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13958343 (or 13958337 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The spelling of 25250505003 in words is "twenty-five billion, two hundred fifty million, five hundred five thousand, three".