25530343245 has 48 divisors (see below), whose sum is σ = 48289131072. Its totient is φ = 12374868480.

The previous prime is 25530343231. The next prime is 25530343261. The reversal of 25530343245 is 54234303552.

25530343245 is a `hidden beast` number, since 2 + 553 + 0 + 34 + 32 + 45 = 666.

It is not a de Polignac number, because 25530343245 - 2⁵ = 25530343213 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3093094 + ... + 3101336.

It is an arithmetic number, because the mean of its divisors is an integer number (1006023564).

Almost surely, 2^25530343245 is an apocalyptic number.

It is an amenable number.

25530343245 is a deficient number, since it is larger than the sum of its proper divisors (22758787827).

25530343245 is a wasteful number, since it uses less digits than its factorization.

25530343245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14522 (or 14519 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 25530343245 its reverse (54234303552), we get a palindrome (79764646797).

The spelling of 25530343245 in words is "twenty-five billion, five hundred thirty million, three hundred forty-three thousand, two hundred forty-five".