2505445533 has 16 divisors (see below), whose sum is σ = 3930111360. Its totient is φ = 1572043968.

The previous prime is 2505445531. The next prime is 2505445541. The reversal of 2505445533 is 3355445052.

2505445533 is a `hidden beast` number, since 2 + 50 + 54 + 4 + 553 + 3 = 666.

It is not a de Polignac number, because 2505445533 - 2¹ = 2505445531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505445531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2728785 + ... + 2729702.

It is an arithmetic number, because the mean of its divisors is an integer number (245631960).

Almost surely, 2^2505445533 is an apocalyptic number.

It is an amenable number.

2505445533 is a deficient number, since it is larger than the sum of its proper divisors (1424665827).

2505445533 is a wasteful number, since it uses less digits than its factorization.

2505445533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458513 (or 5458507 counting only the distinct ones).

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

The square root of 2505445533 is about 50054.4257084226. The cubic root of 2505445533 is about 1358.1935237169.

The spelling of 2505445533 in words is "two billion, five hundred five million, four hundred forty-five thousand, five hundred thirty-three".