22553401 has 16 divisors (see below), whose sum is σ = 24932880. Its totient is φ = 20275200.

The previous prime is 22553393. The next prime is 22553413. The reversal of 22553401 is 10435522.

It can be written as a sum of positive squares in 8 ways, for example, as 921600 + 21631801 = 960^2 + 4651^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553401 - 2³ = 22553393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22553431) 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 15 ways as a sum of consecutive naturals, for example, 116761 + ... + 116953.

It is an arithmetic number, because the mean of its divisors is an integer number (1558305).

Almost surely, 2^22553401 is an apocalyptic number.

It is an amenable number.

22553401 is a deficient number, since it is larger than the sum of its proper divisors (2379479).

22553401 is a wasteful number, since it uses less digits than its factorization.

22553401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22553401 is about 4749.0421139426. The cubic root of 22553401 is about 282.5339756041.

Adding to 22553401 its reverse (10435522), we get a palindrome (32988923).

The spelling of 22553401 in words is "twenty-two million, five hundred fifty-three thousand, four hundred one".