56213224 has 8 divisors (see below), whose sum is σ = 105399810. Its totient is φ = 28106608.

The previous prime is 56213221. The next prime is 56213233. The reversal of 56213224 is 42231265.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 16144324 = 6330^2 + 4018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×56213224³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (56213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3513319 + ... + 3513334.

Almost surely, 2^56213224 is an apocalyptic number.

It is an amenable number.

56213224 is a deficient number, since it is larger than the sum of its proper divisors (49186586).

56213224 is a wasteful number, since it uses less digits than its factorization.

56213224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026659 (or 7026655 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 56213224 is about 7497.5478658025. The cubic root of 56213224 is about 383.0711963757.

Adding to 56213224 its reverse (42231265), we get a palindrome (98444489).

The spelling of 56213224 in words is "fifty-six million, two hundred thirteen thousand, two hundred twenty-four".