22502705 has 4 divisors (see below), whose sum is σ = 27003252. Its totient is φ = 18002160.

The previous prime is 22502681. The next prime is 22502729. The reversal of 22502705 is 50720522.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22502681) and next prime (22502729).

It can be written as a sum of positive squares in 2 ways, for example, as 5230369 + 17272336 = 2287^2 + 4156^2 .

It is not a de Polignac number, because 22502705 - 2²² = 18308401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250266 + ... + 2250275.

It is an arithmetic number, because the mean of its divisors is an integer number (6750813).

Almost surely, 2^22502705 is an apocalyptic number.

It is an amenable number.

22502705 is a deficient number, since it is larger than the sum of its proper divisors (4500547).

22502705 is an equidigital number, since it uses as much as digits as its factorization.

22502705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500546.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 22502705 is about 4743.7016137190. The cubic root of 22502705 is about 282.3221215552.

The spelling of 22502705 in words is "twenty-two million, five hundred two thousand, seven hundred five".