2522749 has 8 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 2297280.

The previous prime is 2522743. The next prime is 2522753. The reversal of 2522749 is 9472252.

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

It is a cyclic number.

It is not a de Polignac number, because 2522749 - 2⁵ = 2522717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2522749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (344736).

2^2522749 is an apocalyptic number.

It is an amenable number.

2522749 is a deficient number, since it is larger than the sum of its proper divisors (235139).

2522749 is a wasteful number, since it uses less digits than its factorization.

2522749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835.

The product of its digits is 10080, while the sum is 31.

The square root of 2522749 is about 1588.3164042470. The cubic root of 2522749 is about 136.1313070068.

The spelling of 2522749 in words is "two million, five hundred twenty-two thousand, seven hundred forty-nine".