22159475 has 24 divisors (see below), whose sum is σ = 30331392. Its totient is φ = 15955200.

The previous prime is 22159447. The next prime is 22159481. The reversal of 22159475 is 57495122.

It is not a de Polignac number, because 22159475 - 2¹⁴ = 22143091 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12494 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (1263808).

Almost surely, 2^22159475 is an apocalyptic number.

22159475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22159475 is a deficient number, since it is larger than the sum of its proper divisors (8171917).

22159475 is a wasteful number, since it uses less digits than its factorization.

22159475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727 (or 1722 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 22159475 is about 4707.3851552640. The cubic root of 22159475 is about 280.8793570333.

The spelling of 22159475 in words is "twenty-two million, one hundred fifty-nine thousand, four hundred seventy-five".