22609975 has 6 divisors (see below), whose sum is σ = 28036400. Its totient is φ = 18087960.

The previous prime is 22609973. The next prime is 22609987. The reversal of 22609975 is 57990622.

It is a happy number.

It is not a de Polignac number, because 22609975 - 2¹ = 22609973 is a prime.

It is a super-2 number, since 2×22609975² = 1022421939001250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22609973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 452175 + ... + 452224.

Almost surely, 2^22609975 is an apocalyptic number.

22609975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22609975 is a deficient number, since it is larger than the sum of its proper divisors (5426425).

22609975 is an equidigital number, since it uses as much as digits as its factorization.

22609975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904409 (or 904404 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 22609975 is about 4754.9947423735. The cubic root of 22609975 is about 282.7700188016.

The spelling of 22609975 in words is "twenty-two million, six hundred nine thousand, nine hundred seventy-five".