22509801 has 24 divisors (see below), whose sum is σ = 34856640. Its totient is φ = 13961376.

The previous prime is 22509797. The next prime is 22509827. The reversal of 22509801 is 10890522.

It is not a de Polignac number, because 22509801 - 2² = 22509797 is a prime.

It is a super-2 number, since 2×22509801² = 1013382282119202, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22509871) 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, 6190 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^22509801 is an apocalyptic number.

It is an amenable number.

22509801 is a deficient number, since it is larger than the sum of its proper divisors (12346839).

22509801 is a wasteful number, since it uses less digits than its factorization.

22509801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 3002 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22509801 is about 4744.4494938823. The cubic root of 22509801 is about 282.3517942432.

The spelling of 22509801 in words is "twenty-two million, five hundred nine thousand, eight hundred one".