2553623639 has 4 divisors (see below), whose sum is σ = 2918427024. Its totient is φ = 2188820256.

The previous prime is 2553623629. The next prime is 2553623647. The reversal of 2553623639 is 9363263552.

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

It is not a de Polignac number, because 2553623639 - 2⁸ = 2553623383 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 2553623639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553623609) 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, 182401682 + ... + 182401695.

It is an arithmetic number, because the mean of its divisors is an integer number (729606756).

Almost surely, 2^2553623639 is an apocalyptic number.

2553623639 is a deficient number, since it is larger than the sum of its proper divisors (364803385).

2553623639 is an equidigital number, since it uses as much as digits as its factorization.

2553623639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364803384.

The product of its digits is 874800, while the sum is 44.

The square root of 2553623639 is about 50533.3913269236. The cubic root of 2553623639 is about 1366.8440397257.

The spelling of 2553623639 in words is "two billion, five hundred fifty-three million, six hundred twenty-three thousand, six hundred thirty-nine".