2553402505 has 4 divisors (see below), whose sum is σ = 3064083012. Its totient is φ = 2042722000.

The previous prime is 2553402493. The next prime is 2553402557. The reversal of 2553402505 is 5052043552.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1132187904 + 1421214601 = 33648^2 + 37699^2 .

It is not a de Polignac number, because 2553402505 - 2⁵ = 2553402473 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255340246 + ... + 255340255.

It is an arithmetic number, because the mean of its divisors is an integer number (766020753).

Almost surely, 2^2553402505 is an apocalyptic number.

It is an amenable number.

2553402505 is a deficient number, since it is larger than the sum of its proper divisors (510680507).

2553402505 is an equidigital number, since it uses as much as digits as its factorization.

2553402505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510680506.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 2553402505 is about 50531.2032807453. The cubic root of 2553402505 is about 1366.8045841052.

The spelling of 2553402505 in words is "two billion, five hundred fifty-three million, four hundred two thousand, five hundred five".