22551135 has 16 divisors (see below), whose sum is σ = 36921984. Its totient is φ = 11747232.

The previous prime is 22551131. The next prime is 22551149. The reversal of 22551135 is 53115522.

It is a happy number.

It is not a de Polignac number, because 22551135 - 2² = 22551131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16837 + ... + 18126.

It is an arithmetic number, because the mean of its divisors is an integer number (2307624).

Almost surely, 2^22551135 is an apocalyptic number.

22551135 is a deficient number, since it is larger than the sum of its proper divisors (14370849).

22551135 is a wasteful number, since it uses less digits than its factorization.

22551135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35014.

The product of its digits is 1500, while the sum is 24.

The square root of 22551135 is about 4748.8035335229. The cubic root of 22551135 is about 282.5245129746.

Adding to 22551135 its reverse (53115522), we get a palindrome (75666657).

It can be divided in two parts, 225 and 51135, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 22551135 in words is "twenty-two million, five hundred fifty-one thousand, one hundred thirty-five".