22061256 has 32 divisors (see below), whose sum is σ = 63032640. Its totient is φ = 6303168.

The previous prime is 22061227. The next prime is 22061269. The reversal of 22061256 is 65216022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65491 + ... + 65826.

It is an arithmetic number, because the mean of its divisors is an integer number (1969770).

Almost surely, 2^22061256 is an apocalyptic number.

It is an amenable number.

22061256 is an abundant number, since it is smaller than the sum of its proper divisors (40971384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22061256 is a wasteful number, since it uses less digits than its factorization.

22061256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131333 (or 131329 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22061256 is about 4696.9411322690. The cubic root of 22061256 is about 280.4637552820.

Adding to 22061256 its reverse (65216022), we get a palindrome (87277278).

The spelling of 22061256 in words is "twenty-two million, sixty-one thousand, two hundred fifty-six".