2505503623 has 12 divisors (see below), whose sum is σ = 2924953632. Its totient is φ = 2139920160.

The previous prime is 2505503603. The next prime is 2505503629. The reversal of 2505503623 is 3263055052.

It is not a de Polignac number, because 2505503623 - 2¹³ = 2505495431 is a prime.

It is a super-2 number, since 2×2505503623² = 12555096809732252258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505503629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77215 + ... + 104752.

It is an arithmetic number, because the mean of its divisors is an integer number (243746136).

Almost surely, 2^2505503623 is an apocalyptic number.

2505503623 is a deficient number, since it is larger than the sum of its proper divisors (419450009).

2505503623 is a wasteful number, since it uses less digits than its factorization.

2505503623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182262 (or 182255 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 2505503623 is about 50055.0059734289. The cubic root of 2505503623 is about 1358.2040204331.

Adding to 2505503623 its reverse (3263055052), we get a palindrome (5768558675).

The spelling of 2505503623 in words is "two billion, five hundred five million, five hundred three thousand, six hundred twenty-three".