22609501 has 2 divisors, whose sum is σ = 22609502. Its totient is φ = 22609500.

The previous prime is 22609481. The next prime is 22609511. The reversal of 22609501 is 10590622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 8696601 = 3730^2 + 2949^2 .

It is a cyclic number.

It is not a de Polignac number, because 22609501 - 2⁵ = 22609469 is a prime.

It is a super-2 number, since 2×22609501² = 1022379070938002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22609511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11304750 + 11304751.

It is an arithmetic number, because the mean of its divisors is an integer number (11304751).

Almost surely, 2^22609501 is an apocalyptic number.

It is an amenable number.

22609501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22609501 is an equidigital number, since it uses as much as digits as its factorization.

22609501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 22609501 is about 4754.9448997859. The cubic root of 22609501 is about 282.7680427722.

The spelling of 22609501 in words is "twenty-two million, six hundred nine thousand, five hundred one".