2251899 has 24 divisors (see below), whose sum is σ = 3690960. Its totient is φ = 1311552.

The previous prime is 2251897. The next prime is 2251901. The reversal of 2251899 is 9981522.

It is an interprime number because it is at equal distance from previous prime (2251897) and next prime (2251901).

It is not a de Polignac number, because 2251899 - 2¹ = 2251897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1717 + ... + 2729.

It is an arithmetic number, because the mean of its divisors is an integer number (153790).

2^2251899 is an apocalyptic number.

2251899 is a deficient number, since it is larger than the sum of its proper divisors (1439061).

2251899 is a wasteful number, since it uses less digits than its factorization.

2251899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1048 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2251899 is about 1500.6328664933. The cubic root of 2251899 is about 131.0739244395.

The spelling of 2251899 in words is "two million, two hundred fifty-one thousand, eight hundred ninety-nine".