2505503133 has 18 divisors (see below), whose sum is σ = 4209927774. Its totient is φ = 1431715824.

The previous prime is 2505503131. The next prime is 2505503177. The reversal of 2505503133 is 3313055052.

2505503133 is a `hidden beast` number, since 2 + 50 + 550 + 31 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1400406084 + 1105097049 = 37422^2 + 33243^2 .

It is not a de Polignac number, because 2505503133 - 2¹ = 2505503131 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2505503097 and 2505503106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505503131) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2840266 + ... + 2841147.

Almost surely, 2^2505503133 is an apocalyptic number.

It is an amenable number.

2505503133 is a deficient number, since it is larger than the sum of its proper divisors (1704424641).

2505503133 is a wasteful number, since it uses less digits than its factorization.

2505503133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681433 (or 5681423 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 2505503133 is about 50055.0010788133. The cubic root of 2505503133 is about 1358.2039318920.

Adding to 2505503133 its reverse (3313055052), we get a palindrome (5818558185).

The spelling of 2505503133 in words is "two billion, five hundred five million, five hundred three thousand, one hundred thirty-three".