56121010 has 24 divisors (see below), whose sum is σ = 111038508. Its totient is φ = 20407200.

The previous prime is 56121007. The next prime is 56121017. The reversal of 56121010 is 1012165.

It is a happy number.

56121010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56115081 + 5929 = 7491^2 + 77^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56121017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21981 + ... + 24400.

Almost surely, 2^56121010 is an apocalyptic number.

56121010 is a deficient number, since it is larger than the sum of its proper divisors (54917498).

56121010 is a wasteful number, since it uses less digits than its factorization.

56121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46410 (or 46399 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 56121010 is about 7491.3957311038. The cubic root of 56121010 is about 382.8616142510.

Adding to 56121010 its reverse (1012165), we get a palindrome (57133175).

The spelling of 56121010 in words is "fifty-six million, one hundred twenty-one thousand, ten".