22153755 has 32 divisors (see below), whose sum is σ = 38578176. Its totient is φ = 10790784.

The previous prime is 22153741. The next prime is 22153777. The reversal of 22153755 is 55735122.

22153755 = 220² + 221² + ... + 425².

It is not a de Polignac number, because 22153755 - 2⁴ = 22153739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19534 + ... + 20636.

It is an arithmetic number, because the mean of its divisors is an integer number (1205568).

Almost surely, 2^22153755 is an apocalyptic number.

22153755 is a deficient number, since it is larger than the sum of its proper divisors (16424421).

22153755 is a wasteful number, since it uses less digits than its factorization.

22153755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227.

The product of its digits is 10500, while the sum is 30.

The square root of 22153755 is about 4706.7775600723. Note that the first 3 decimals coincide. The cubic root of 22153755 is about 280.8551872642.

Adding to 22153755 its reverse (55735122), we get a palindrome (77888877).

The spelling of 22153755 in words is "twenty-two million, one hundred fifty-three thousand, seven hundred fifty-five".