2553563217 has 16 divisors (see below), whose sum is σ = 3721324032. Its totient is φ = 1550549760.

The previous prime is 2553563203. The next prime is 2553563249. The reversal of 2553563217 is 7123653552.

It is a de Polignac number, because none of the positive numbers 2^k-2553563217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2553563297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805998 + ... + 809159.

It is an arithmetic number, because the mean of its divisors is an integer number (232582752).

Almost surely, 2^2553563217 is an apocalyptic number.

It is an amenable number.

2553563217 is a deficient number, since it is larger than the sum of its proper divisors (1167760815).

2553563217 is a wasteful number, since it uses less digits than its factorization.

2553563217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615208.

The product of its digits is 189000, while the sum is 39.

The square root of 2553563217 is about 50532.7934810653. The cubic root of 2553563217 is about 1366.8332592148.

The spelling of 2553563217 in words is "two billion, five hundred fifty-three million, five hundred sixty-three thousand, two hundred seventeen".