56290222 has 4 divisors (see below), whose sum is σ = 84435336. Its totient is φ = 28145110.

The previous prime is 56290219. The next prime is 56290243. The reversal of 56290222 is 22209265.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14072554 + ... + 14072557.

It is an arithmetic number, because the mean of its divisors is an integer number (21108834).

Almost surely, 2^56290222 is an apocalyptic number.

56290222 is a deficient number, since it is larger than the sum of its proper divisors (28145114).

56290222 is a wasteful number, since it uses less digits than its factorization.

56290222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28145113.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56290222 is about 7502.6809874871. The cubic root of 56290222 is about 383.2460203576.

Adding to 56290222 its reverse (22209265), we get a palindrome (78499487).

The spelling of 56290222 in words is "fifty-six million, two hundred ninety thousand, two hundred twenty-two".