22627561 has 16 divisors (see below), whose sum is σ = 27278208. Its totient is φ = 18515200.

The previous prime is 22627559. The next prime is 22627567. The reversal of 22627561 is 16572622.

It is not a de Polignac number, because 22627561 - 2¹ = 22627559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22627567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (1704888).

Almost surely, 2^22627561 is an apocalyptic number.

It is an amenable number.

22627561 is a deficient number, since it is larger than the sum of its proper divisors (4650647).

22627561 is a wasteful number, since it uses less digits than its factorization.

22627561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312.

The product of its digits is 10080, while the sum is 31.

The square root of 22627561 is about 4756.8435963357. The cubic root of 22627561 is about 282.8433124818.

The spelling of 22627561 in words is "twenty-two million, six hundred twenty-seven thousand, five hundred sixty-one".