2563169 has 4 divisors (see below), whose sum is σ = 2929344. Its totient is φ = 2196996.

The previous prime is 2563153. The next prime is 2563181. The reversal of 2563169 is 9613652.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2563169 - 2⁴ = 2563153 is a prime.

It is a super-2 number, since 2×2563169² = 13139670645122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2563109) 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, 183077 + ... + 183090.

It is an arithmetic number, because the mean of its divisors is an integer number (732336).

2^2563169 is an apocalyptic number.

It is an amenable number.

2563169 is a deficient number, since it is larger than the sum of its proper divisors (366175).

2563169 is an equidigital number, since it uses as much as digits as its factorization.

2563169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366174.

The product of its digits is 9720, while the sum is 32.

The square root of 2563169 is about 1600.9900062149. The cubic root of 2563169 is about 136.8544994769.

Adding to 2563169 its sum of digits (32), we get a square (2563201 = 1601²).

The spelling of 2563169 in words is "two million, five hundred sixty-three thousand, one hundred sixty-nine".