25132061533 has 4 divisors (see below), whose sum is σ = 25236344188. Its totient is φ = 25027778880.

The previous prime is 25132061531. The next prime is 25132061557. The reversal of 25132061533 is 33516023152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19874796484 + 5257265049 = 140978^2 + 72507^2 .

It is a cyclic number.

It is not a de Polignac number, because 25132061533 - 2¹ = 25132061531 is a prime.

It is a super-3 number, since 3×25132061533³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25132061495 and 25132061504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25132061531) 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 3 ways as a sum of consecutive naturals, for example, 52140966 + ... + 52141447.

It is an arithmetic number, because the mean of its divisors is an integer number (6309086047).

Almost surely, 2^25132061533 is an apocalyptic number.

It is an amenable number.

25132061533 is a deficient number, since it is larger than the sum of its proper divisors (104282655).

25132061533 is a wasteful number, since it uses less digits than its factorization.

25132061533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104282654.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 25132061533 its reverse (33516023152), we get a palindrome (58648084685).

The spelling of 25132061533 in words is "twenty-five billion, one hundred thirty-two million, sixty-one thousand, five hundred thirty-three".