25554536234 has 4 divisors (see below), whose sum is σ = 38331804354. Its totient is φ = 12777268116.

The previous prime is 25554536213. The next prime is 25554536251. The reversal of 25554536234 is 43263545552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19195271209 + 6359265025 = 138547^2 + 79745^2 .

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 as a sum of consecutive naturals, namely, 6388634057 + ... + 6388634060.

Almost surely, 2^25554536234 is an apocalyptic number.

25554536234 is a deficient number, since it is larger than the sum of its proper divisors (12777268120).

25554536234 is a wasteful number, since it uses less digits than its factorization.

25554536234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777268119.

The product of its digits is 2160000, while the sum is 44.

The spelling of 25554536234 in words is "twenty-five billion, five hundred fifty-four million, five hundred thirty-six thousand, two hundred thirty-four".