2251567 has 4 divisors (see below), whose sum is σ = 2255040. Its totient is φ = 2248096.

The previous prime is 2251559. The next prime is 2251573. The reversal of 2251567 is 7651522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251567 - 2³ = 2251559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251507) 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, 442 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (563760).

2^2251567 is an apocalyptic number.

2251567 is a deficient number, since it is larger than the sum of its proper divisors (3473).

2251567 is an equidigital number, since it uses as much as digits as its factorization.

2251567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472.

The product of its digits is 4200, while the sum is 28.

The square root of 2251567 is about 1500.5222424210. The cubic root of 2251567 is about 131.0674826643.

The spelling of 2251567 in words is "two million, two hundred fifty-one thousand, five hundred sixty-seven".