2505904495 has 4 divisors (see below), whose sum is σ = 3007085400. Its totient is φ = 2004723592.

The previous prime is 2505904477. The next prime is 2505904517. The reversal of 2505904495 is 5944095052.

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

It is a cyclic number.

It is not a de Polignac number, because 2505904495 - 2¹¹ = 2505902447 is a prime.

It is a super-2 number, since 2×2505904495² = 12559114676122410050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250590445 + ... + 250590454.

It is an arithmetic number, because the mean of its divisors is an integer number (751771350).

Almost surely, 2^2505904495 is an apocalyptic number.

2505904495 is a deficient number, since it is larger than the sum of its proper divisors (501180905).

2505904495 is an equidigital number, since it uses as much as digits as its factorization.

2505904495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501180904.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 2505904495 is about 50059.0101280479. The cubic root of 2505904495 is about 1358.2764525677.

The spelling of 2505904495 in words is "two billion, five hundred five million, nine hundred four thousand, four hundred ninety-five".