56221042 has 16 divisors (see below), whose sum is σ = 87512832. Its totient is φ = 27059760.

The previous prime is 56221037. The next prime is 56221043. The reversal of 56221042 is 24012265.

It is not an unprimeable number, because it can be changed into a prime (56221043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9913 + ... + 14515.

It is an arithmetic number, because the mean of its divisors is an integer number (5469552).

Almost surely, 2^56221042 is an apocalyptic number.

56221042 is a deficient number, since it is larger than the sum of its proper divisors (31291790).

56221042 is a wasteful number, since it uses less digits than its factorization.

56221042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 56221042 is about 7498.0692181388. The cubic root of 56221042 is about 383.0889544260.

The spelling of 56221042 in words is "fifty-six million, two hundred twenty-one thousand, forty-two".