55430210 has 16 divisors (see below), whose sum is σ = 108844992. Its totient is φ = 20156400.

The previous prime is 55430203. The next prime is 55430227. The reversal of 55430210 is 1203455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251846 + ... + 252065.

It is an arithmetic number, because the mean of its divisors is an integer number (6802812).

Almost surely, 2^55430210 is an apocalyptic number.

55430210 is a deficient number, since it is larger than the sum of its proper divisors (53414782).

55430210 is a wasteful number, since it uses less digits than its factorization.

55430210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503929.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55430210 is about 7445.1467413342. The cubic root of 55430210 is about 381.2842284059.

Adding to 55430210 its reverse (1203455), we get a palindrome (56633665).

The spelling of 55430210 in words is "fifty-five million, four hundred thirty thousand, two hundred ten".