25083193509 has 16 divisors (see below), whose sum is σ = 40538495040. Its totient is φ = 15201935280.

The previous prime is 25083193489. The next prime is 25083193519. The reversal of 25083193509 is 90539138052.

25083193509 is a `hidden beast` number, since 2 + 50 + 8 + 3 + 1 + 93 + 509 = 666.

It is not a de Polignac number, because 25083193509 - 2⁵ = 25083193477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25083193519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42227302 + ... + 42227895.

It is an arithmetic number, because the mean of its divisors is an integer number (2533655940).

Almost surely, 2^25083193509 is an apocalyptic number.

It is an amenable number.

25083193509 is a deficient number, since it is larger than the sum of its proper divisors (15455301531).

25083193509 is a wasteful number, since it uses less digits than its factorization.

25083193509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84455217 (or 84455211 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 25083193509 in words is "twenty-five billion, eighty-three million, one hundred ninety-three thousand, five hundred nine".