22705057 has 16 divisors (see below), whose sum is σ = 25056000. Its totient is φ = 20490624.

The previous prime is 22705049. The next prime is 22705061. The reversal of 22705057 is 75050722.

It is a cyclic number.

It is not a de Polignac number, because 22705057 - 2³ = 22705049 is a prime.

It is a super-2 number, since 2×22705057² = 1031039226746498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22705037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48808 + ... + 49270.

It is an arithmetic number, because the mean of its divisors is an integer number (1566000).

Almost surely, 2^22705057 is an apocalyptic number.

It is an amenable number.

22705057 is a deficient number, since it is larger than the sum of its proper divisors (2350943).

22705057 is a wasteful number, since it uses less digits than its factorization.

22705057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 22705057 is about 4764.9823714259. The cubic root of 22705057 is about 283.1658431852.

Adding to 22705057 its reverse (75050722), we get a palindrome (97755779).

The spelling of 22705057 in words is "twenty-two million, seven hundred five thousand, fifty-seven".