2251554 has 8 divisors (see below), whose sum is σ = 4503120. Its totient is φ = 750516.

The previous prime is 2251553. The next prime is 2251559. The reversal of 2251554 is 4551522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2251554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2251553) 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, 187624 + ... + 187635.

It is an arithmetic number, because the mean of its divisors is an integer number (562890).

2^2251554 is an apocalyptic number.

2251554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251554 is a wasteful number, since it uses less digits than its factorization.

2251554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375264.

The product of its digits is 2000, while the sum is 24.

The square root of 2251554 is about 1500.5179105895. The cubic root of 2251554 is about 131.0672304132.

Subtracting 2251554 from its reverse (4551522), we obtain a cube (2299968 = 132³).

The spelling of 2251554 in words is "two million, two hundred fifty-one thousand, five hundred fifty-four".