25025452533 has 6 divisors (see below), whose sum is σ = 36147875894. Its totient is φ = 16683635016.

The previous prime is 25025452513. The next prime is 25025452537. The reversal of 25025452533 is 33525452052.

25025452533 is a `hidden beast` number, since 2 + 50 + 2 + 54 + 525 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16941104964 + 8084347569 = 130158^2 + 89913^2 .

It is not a de Polignac number, because 25025452533 - 2³⁰ = 23951710709 is a prime.

It is a super-2 number, since 2×25025452533² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025452537) 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 5 ways as a sum of consecutive naturals, for example, 1390302910 + ... + 1390302927.

Almost surely, 2^25025452533 is an apocalyptic number.

It is an amenable number.

25025452533 is a deficient number, since it is larger than the sum of its proper divisors (11122423361).

25025452533 is a wasteful number, since it uses less digits than its factorization.

25025452533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780605843 (or 2780605840 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

The spelling of 25025452533 in words is "twenty-five billion, twenty-five million, four hundred fifty-two thousand, five hundred thirty-three".