25854710436 has 45 divisors (see below), whose sum is σ = 67596887281. Its totient is φ = 8617272048.

The previous prime is 25854710393. The next prime is 25854710443. The reversal of 25854710436 is 63401745852.

The square root of 25854710436 is 160794.

It is a perfect power (a square), and thus also a powerful number.

25854710436 is a `hidden beast` number, since 2 + 58 + 547 + 10 + 43 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6604812900 + 19249897536 = 81270^2 + 138744^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25854710391 and 25854710400.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2889826 + ... + 2898758.

Almost surely, 2^25854710436 is an apocalyptic number.

25854710436 is the 160794-th square number.

It is an amenable number.

25854710436 is an abundant number, since it is smaller than the sum of its proper divisors (41742176845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25854710436 is an frugal number, since it uses more digits than its factorization.

25854710436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882 (or 8938 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 25854710436 in words is "twenty-five billion, eight hundred fifty-four million, seven hundred ten thousand, four hundred thirty-six".