22075257 has 4 divisors (see below), whose sum is σ = 29433680. Its totient is φ = 14716836.

The previous prime is 22075247. The next prime is 22075301. The reversal of 22075257 is 75257022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22075257 - 2⁴ = 22075241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22075237) 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, 3679207 + ... + 3679212.

It is an arithmetic number, because the mean of its divisors is an integer number (7358420).

Almost surely, 2^22075257 is an apocalyptic number.

It is an amenable number.

22075257 is a deficient number, since it is larger than the sum of its proper divisors (7358423).

22075257 is an equidigital number, since it uses as much as digits as its factorization.

22075257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358422.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 22075257 is about 4698.4313339667. The cubic root of 22075257 is about 280.5230740962.

It can be divided in two parts, 2 and 2075257, that multiplied together give a palindrome (4150514).

The spelling of 22075257 in words is "twenty-two million, seventy-five thousand, two hundred fifty-seven".