2505005553 has 4 divisors (see below), whose sum is σ = 3340007408. Its totient is φ = 1670003700.

The previous prime is 2505005537. The next prime is 2505005593. The reversal of 2505005553 is 3555005052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2505005553 - 2⁴ = 2505005537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2505005553.

It is not an unprimeable number, because it can be changed into a prime (2505005513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417500923 + ... + 417500928.

It is an arithmetic number, because the mean of its divisors is an integer number (835001852).

Almost surely, 2^2505005553 is an apocalyptic number.

It is an amenable number.

2505005553 is a deficient number, since it is larger than the sum of its proper divisors (835001855).

2505005553 is an equidigital number, since it uses as much as digits as its factorization.

2505005553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835001854.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 2505005553 is about 50050.0304994912. The cubic root of 2505005553 is about 1358.1140151741.

The spelling of 2505005553 in words is "two billion, five hundred five million, five thousand, five hundred fifty-three".