22053951 has 24 divisors (see below), whose sum is σ = 33755904. Its totient is φ = 14382360.

The previous prime is 22053923. The next prime is 22053971. The reversal of 22053951 is 15935022.

It is not a de Polignac number, because 22053951 - 2⁹ = 22053439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053971) 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 23 ways as a sum of consecutive naturals, for example, 10456 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (1406496).

Almost surely, 2^22053951 is an apocalyptic number.

22053951 is a deficient number, since it is larger than the sum of its proper divisors (11701953).

22053951 is an equidigital number, since it uses as much as digits as its factorization.

22053951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 22053951 is about 4696.1634341236. The cubic root of 22053951 is about 280.4327958192.

Adding to 22053951 its reverse (15935022), we get a palindrome (37988973).

The spelling of 22053951 in words is "twenty-two million, fifty-three thousand, nine hundred fifty-one".