56127220 has 12 divisors (see below), whose sum is σ = 117867204. Its totient is φ = 22450880.

The previous prime is 56127193. The next prime is 56127223. The reversal of 56127220 is 2272165.

It can be written as a sum of positive squares in 2 ways, for example, as 22695696 + 33431524 = 4764^2 + 5782^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56127223) 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, 1403161 + ... + 1403200.

It is an arithmetic number, because the mean of its divisors is an integer number (9822267).

Almost surely, 2^56127220 is an apocalyptic number.

It is an amenable number.

56127220 is an abundant number, since it is smaller than the sum of its proper divisors (61739984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56127220 is a wasteful number, since it uses less digits than its factorization.

56127220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806370 (or 2806368 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56127220 is about 7491.8101951398. The cubic root of 56127220 is about 382.8757354208.

Adding to 56127220 its reverse (2272165), we get a palindrome (58399385).

The spelling of 56127220 in words is "fifty-six million, one hundred twenty-seven thousand, two hundred twenty".