22532001 has 16 divisors (see below), whose sum is σ = 31613568. Its totient is φ = 14256000.

The previous prime is 22531991. The next prime is 22532017. The reversal of 22532001 is 10023522.

It is not a de Polignac number, because 22532001 - 2⁵ = 22531969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22532051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076 + ... + 7026.

It is an arithmetic number, because the mean of its divisors is an integer number (1975848).

Almost surely, 2^22532001 is an apocalyptic number.

It is an amenable number.

22532001 is a deficient number, since it is larger than the sum of its proper divisors (9081567).

22532001 is a wasteful number, since it uses less digits than its factorization.

22532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 22532001 is about 4746.7884932868. The cubic root of 22532001 is about 282.4445856797. Note that the first 3 decimals are identical.

Adding to 22532001 its reverse (10023522), we get a palindrome (32555523).

The spelling of 22532001 in words is "twenty-two million, five hundred thirty-two thousand, one".