2251587 has 12 divisors (see below), whose sum is σ = 3251544. Its totient is φ = 1385280.

The previous prime is 2251573. The next prime is 2251591. The reversal of 2251587 is 7851522.

It is not a de Polignac number, because 2251587 - 2⁸ = 2251331 is a prime.

2251587 is a lucky 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 11 ways as a sum of consecutive naturals, for example, 1714 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (270962).

2^2251587 is an apocalyptic number.

2251587 is a deficient number, since it is larger than the sum of its proper divisors (999957).

2251587 is a wasteful number, since it uses less digits than its factorization.

2251587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470 (or 4457 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 2251587 is about 1500.5289067525. The cubic root of 2251587 is about 131.0678707410.

The spelling of 2251587 in words is "two million, two hundred fifty-one thousand, five hundred eighty-seven".