55412210 has 32 divisors (see below), whose sum is σ = 115931520. Its totient is φ = 18675072.

The previous prime is 55412209. The next prime is 55412219. The reversal of 55412210 is 1221455.

It is not an unprimeable number, because it can be changed into a prime (55412219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2579 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (3622860).

Almost surely, 2^55412210 is an apocalyptic number.

55412210 is an abundant number, since it is smaller than the sum of its proper divisors (60519310).

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

55412210 is a wasteful number, since it uses less digits than its factorization.

55412210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13490.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55412210 is about 7443.9378019970. The cubic root of 55412210 is about 381.2429521227.

Adding to 55412210 its reverse (1221455), we get a palindrome (56633665).

The spelling of 55412210 in words is "fifty-five million, four hundred twelve thousand, two hundred ten".