55563310 has 64 divisors (see below), whose sum is σ = 118381824. Its totient is φ = 18547200.

The previous prime is 55563289. The next prime is 55563311. The reversal of 55563310 is 1336555.

It is a happy number.

It is a super-2 number, since 2×55563310² = 6174562836312200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55563311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80065 + ... + 80755.

It is an arithmetic number, because the mean of its divisors is an integer number (1849716).

Almost surely, 2^55563310 is an apocalyptic number.

55563310 is an abundant number, since it is smaller than the sum of its proper divisors (62818514).

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

55563310 is a wasteful number, since it uses less digits than its factorization.

55563310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55563310 is about 7454.0800907959. The cubic root of 55563310 is about 381.5891666045.

Adding to 55563310 its reverse (1336555), we get a palindrome (56899865).

It can be divided in two parts, 55 and 563310, that added together give a palindrome (563365).

The spelling of 55563310 in words is "fifty-five million, five hundred sixty-three thousand, three hundred ten".