25305503134 has 16 divisors (see below), whose sum is σ = 40071225600. Its totient is φ = 11952266904.

The previous prime is 25305503107. The next prime is 25305503149. The reversal of 25305503134 is 43130550352.

It is a junction number, because it is equal to n+sod(n) for n = 25305503096 and 25305503105.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 946374 + ... + 972745.

It is an arithmetic number, because the mean of its divisors is an integer number (2504451600).

Almost surely, 2^25305503134 is an apocalyptic number.

25305503134 is a deficient number, since it is larger than the sum of its proper divisors (14765722466).

25305503134 is a wasteful number, since it uses less digits than its factorization.

25305503134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919487.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 25305503134 in words is "twenty-five billion, three hundred five million, five hundred three thousand, one hundred thirty-four".