22525577 has 2 divisors, whose sum is σ = 22525578. Its totient is φ = 22525576.

The previous prime is 22525567. The next prime is 22525589. The reversal of 22525577 is 77552522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14167696 + 8357881 = 3764^2 + 2891^2 .

It is a cyclic number.

It is not a de Polignac number, because 22525577 - 2¹⁰ = 22524553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22525567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262788 + 11262789.

It is an arithmetic number, because the mean of its divisors is an integer number (11262789).

Almost surely, 2^22525577 is an apocalyptic number.

It is an amenable number.

22525577 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525577 is an equidigital number, since it uses as much as digits as its factorization.

22525577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49000, while the sum is 35.

The square root of 22525577 is about 4746.1117770234. Note that the first 3 decimals coincide. The cubic root of 22525577 is about 282.4177409493.

The spelling of 22525577 in words is "twenty-two million, five hundred twenty-five thousand, five hundred seventy-seven".