56811022 has 4 divisors (see below), whose sum is σ = 85216536. Its totient is φ = 28405510.

The previous prime is 56811019. The next prime is 56811031. The reversal of 56811022 is 22011865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22011865 = 5 ⋅4402373.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14202754 + ... + 14202757.

It is an arithmetic number, because the mean of its divisors is an integer number (21304134).

Almost surely, 2^56811022 is an apocalyptic number.

56811022 is a deficient number, since it is larger than the sum of its proper divisors (28405514).

56811022 is a wasteful number, since it uses less digits than its factorization.

56811022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28405513.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 56811022 is about 7537.3086708719. The cubic root of 56811022 is about 384.4243310955.

Adding to 56811022 its reverse (22011865), we get a palindrome (78822887).

The spelling of 56811022 in words is "fifty-six million, eight hundred eleven thousand, twenty-two".