56211224 has 16 divisors (see below), whose sum is σ = 105705000. Its totient is φ = 28023232.

The previous prime is 56211203. The next prime is 56211229. The reversal of 56211224 is 42211265.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56211224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56211229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7349 + ... + 12900.

Almost surely, 2^56211224 is an apocalyptic number.

It is an amenable number.

56211224 is a deficient number, since it is larger than the sum of its proper divisors (49493776).

56211224 is a wasteful number, since it uses less digits than its factorization.

56211224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20602 (or 20598 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 56211224 is about 7497.4144876751. The cubic root of 56211224 is about 383.0666532485.

Adding to 56211224 its reverse (42211265), we get a palindrome (98422489).

The spelling of 56211224 in words is "fifty-six million, two hundred eleven thousand, two hundred twenty-four".