22510749 has 8 divisors (see below), whose sum is σ = 30036640. Its totient is φ = 14996016.

The previous prime is 22510711. The next prime is 22510751. The reversal of 22510749 is 94701522.

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

It is not a de Polignac number, because 22510749 - 2⁸ = 22510493 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 (22510799) 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, 5154 + ... + 8460.

It is an arithmetic number, because the mean of its divisors is an integer number (3754580).

Almost surely, 2^22510749 is an apocalyptic number.

It is an amenable number.

22510749 is a deficient number, since it is larger than the sum of its proper divisors (7525891).

22510749 is a wasteful number, since it uses less digits than its factorization.

22510749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 22510749 is about 4744.5493990473. The cubic root of 22510749 is about 282.3557579350.

The spelling of 22510749 in words is "twenty-two million, five hundred ten thousand, seven hundred forty-nine".