25553406830 has 32 divisors (see below), whose sum is σ = 52581505536. Its totient is φ = 8758751904.

The previous prime is 25553406799. The next prime is 25553406839. The reversal of 25553406830 is 3860435552.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25553406839) 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 15 ways as a sum of consecutive naturals, for example, 215237 + ... + 312143.

It is an arithmetic number, because the mean of its divisors is an integer number (1643172048).

Almost surely, 2^25553406830 is an apocalyptic number.

25553406830 is an abundant number, since it is smaller than the sum of its proper divisors (27028098706).

25553406830 is a wasteful number, since it uses less digits than its factorization.

25553406830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100688.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 25553406830 in words is "twenty-five billion, five hundred fifty-three million, four hundred six thousand, eight hundred thirty".