22053881 has 2 divisors, whose sum is σ = 22053882. Its totient is φ = 22053880.

The previous prime is 22053841. The next prime is 22053923. The reversal of 22053881 is 18835022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 48400 = 4691^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22053881 is a prime.

It is a super-2 number, since 2×22053881² = 972747334324322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22053841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11026940 + 11026941.

It is an arithmetic number, because the mean of its divisors is an integer number (11026941).

Almost surely, 2^22053881 is an apocalyptic number.

It is an amenable number.

22053881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22053881 is an equidigital number, since it uses as much as digits as its factorization.

22053881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 22053881 is about 4696.1559812255. The cubic root of 22053881 is about 280.4324991177.

The spelling of 22053881 in words is "twenty-two million, fifty-three thousand, eight hundred eighty-one".