25250533533 has 24 divisors (see below), whose sum is σ = 37522023552. Its totient is φ = 16355690208.

The previous prime is 25250533519. The next prime is 25250533541. The reversal of 25250533533 is 33533505252.

25250533533 is a `hidden beast` number, since 2 + 5 + 250 + 53 + 353 + 3 = 666.

It is not a de Polignac number, because 25250533533 - 2⁵ = 25250533501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250533513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207841 + ... + 306102.

It is an arithmetic number, because the mean of its divisors is an integer number (1563417648).

Almost surely, 2^25250533533 is an apocalyptic number.

It is an amenable number.

25250533533 is a deficient number, since it is larger than the sum of its proper divisors (12271490019).

25250533533 is a wasteful number, since it uses less digits than its factorization.

25250533533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514105 (or 514102 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 36.

The spelling of 25250533533 in words is "twenty-five billion, two hundred fifty million, five hundred thirty-three thousand, five hundred thirty-three".