22520069 has 8 divisors (see below), whose sum is σ = 26457312. Its totient is φ = 18897840.

The previous prime is 22520063. The next prime is 22520077. The reversal of 22520069 is 96002522.

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

It is a de Polignac number, because none of the positive numbers 2^k-22520069 is a prime.

It is a super-2 number, since 2×22520069² = 1014307015529522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78599 + ... + 78884.

It is an arithmetic number, because the mean of its divisors is an integer number (3307164).

Almost surely, 2^22520069 is an apocalyptic number.

It is an amenable number.

22520069 is a deficient number, since it is larger than the sum of its proper divisors (3937243).

22520069 is a wasteful number, since it uses less digits than its factorization.

22520069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157507.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 22520069 is about 4745.5314770845. The cubic root of 22520069 is about 282.3947199523.

The spelling of 22520069 in words is "twenty-two million, five hundred twenty thousand, sixty-nine".