22532761 has 4 divisors (see below), whose sum is σ = 22559332. Its totient is φ = 22506192.

The previous prime is 22532759. The next prime is 22532767. The reversal of 22532761 is 16723522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16723522 = 2 ⋅8361761.

It can be written as a sum of positive squares in 2 ways, for example, as 19536400 + 2996361 = 4420^2 + 1731^2 .

It is a cyclic number.

It is not a de Polignac number, because 22532761 - 2¹ = 22532759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22532767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11970 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (5639833).

Almost surely, 2^22532761 is an apocalyptic number.

It is an amenable number.

22532761 is a deficient number, since it is larger than the sum of its proper divisors (26571).

22532761 is an equidigital number, since it uses as much as digits as its factorization.

22532761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26570.

The product of its digits is 5040, while the sum is 28.

The square root of 22532761 is about 4746.8685467369. The cubic root of 22532761 is about 282.4477612443.

It can be divided in two parts, 225 and 32761, that multiplied together give a square (7371225 = 2715²).

The spelling of 22532761 in words is "twenty-two million, five hundred thirty-two thousand, seven hundred sixty-one".