55216010 has 16 divisors (see below), whose sum is σ = 99479016. Its totient is φ = 22066368.

The previous prime is 55215997. The next prime is 55216013. The reversal of 55216010 is 1061255.

It can be written as a sum of positive squares in 4 ways, for example, as 45711121 + 9504889 = 6761^2 + 3083^2 .

It is not an unprimeable number, because it can be changed into a prime (55216013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14684 + ... + 18056.

Almost surely, 2^55216010 is an apocalyptic number.

55216010 is a deficient number, since it is larger than the sum of its proper divisors (44263006).

55216010 is a wasteful number, since it uses less digits than its factorization.

55216010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 55216010 is about 7430.7476070716. The cubic root of 55216010 is about 380.7924598126.

Adding to 55216010 its reverse (1061255), we get a palindrome (56277265).

The spelling of 55216010 in words is "fifty-five million, two hundred sixteen thousand, ten".