55516206 has 16 divisors (see below), whose sum is σ = 114033744. Its totient is φ = 18005184.

The previous prime is 55516199. The next prime is 55516231. The reversal of 55516206 is 60261555.

It is a Curzon number.

It is a congruent number.

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, 124815 + ... + 125258.

It is an arithmetic number, because the mean of its divisors is an integer number (7127109).

Almost surely, 2^55516206 is an apocalyptic number.

55516206 is an abundant number, since it is smaller than the sum of its proper divisors (58517538).

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

55516206 is a wasteful number, since it uses less digits than its factorization.

55516206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250115.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55516206 is about 7450.9198089900. The cubic root of 55516206 is about 381.4813049132.

It can be divided in two parts, 555 and 16206, that added together give a palindrome (16761).

The spelling of 55516206 in words is "fifty-five million, five hundred sixteen thousand, two hundred six".