25564010133 has 8 divisors (see below), whose sum is σ = 34086090688. Its totient is φ = 17042301504.

The previous prime is 25564010039. The next prime is 25564010137. The reversal of 25564010133 is 33101046552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25564010133 - 2¹⁰ = 25564009109 is a prime.

It is a super-2 number, since 2×25564010133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25564010133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25564010137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193485 + ... + 297597.

It is an arithmetic number, because the mean of its divisors is an integer number (4260761336).

Almost surely, 2^25564010133 is an apocalyptic number.

It is an amenable number.

25564010133 is a deficient number, since it is larger than the sum of its proper divisors (8522080555).

25564010133 is a wasteful number, since it uses less digits than its factorization.

25564010133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185963.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 25564010133 its reverse (33101046552), we get a palindrome (58665056685).

The spelling of 25564010133 in words is "twenty-five billion, five hundred sixty-four million, ten thousand, one hundred thirty-three".