25623413533 has 8 divisors (see below), whose sum is σ = 25835823288. Its totient is φ = 25411835904.

The previous prime is 25623413531. The next prime is 25623413551. The reversal of 25623413533 is 33531432652.

It can be written as a sum of positive squares in 4 ways, for example, as 7132309209 + 18491104324 = 84453^2 + 135982^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25623413533 - 2¹ = 25623413531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25623413492 and 25623413501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25623413531) 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 7 ways as a sum of consecutive naturals, for example, 146116 + ... + 269437.

It is an arithmetic number, because the mean of its divisors is an integer number (3229477911).

Almost surely, 2^25623413533 is an apocalyptic number.

It is an amenable number.

25623413533 is a deficient number, since it is larger than the sum of its proper divisors (212409755).

25623413533 is a wasteful number, since it uses less digits than its factorization.

25623413533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416063.

The product of its digits is 194400, while the sum is 37.

The spelling of 25623413533 in words is "twenty-five billion, six hundred twenty-three million, four hundred thirteen thousand, five hundred thirty-three".