56511422 has 8 divisors (see below), whose sum is σ = 92473272. Its totient is φ = 25687000.

The previous prime is 56511353. The next prime is 56511431. The reversal of 56511422 is 22411565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 56511391 and 56511400.

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 in 3 ways as a sum of consecutive naturals, for example, 1284329 + ... + 1284372.

It is an arithmetic number, because the mean of its divisors is an integer number (11559159).

Almost surely, 2^56511422 is an apocalyptic number.

56511422 is a deficient number, since it is larger than the sum of its proper divisors (35961850).

56511422 is a wasteful number, since it uses less digits than its factorization.

56511422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568714.

The product of its digits is 2400, while the sum is 26.

The square root of 56511422 is about 7517.4079309294. The cubic root of 56511422 is about 383.7473698214.

Adding to 56511422 its reverse (22411565), we get a palindrome (78922987).

The spelling of 56511422 in words is "fifty-six million, five hundred eleven thousand, four hundred twenty-two".