25607049503 has 64 divisors (see below), whose sum is σ = 32520096000. Its totient is φ = 20104519680.

The previous prime is 25607049449. The next prime is 25607049521. The reversal of 25607049503 is 30594070652.

It is not a de Polignac number, because 25607049503 - 2¹² = 25607045407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25607049803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15088751 + ... + 15090447.

It is an arithmetic number, because the mean of its divisors is an integer number (508126500).

Almost surely, 2^25607049503 is an apocalyptic number.

25607049503 is a deficient number, since it is larger than the sum of its proper divisors (6913046497).

25607049503 is a wasteful number, since it uses less digits than its factorization.

25607049503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 25607049503 in words is "twenty-five billion, six hundred seven million, forty-nine thousand, five hundred three".