55632200 has 48 divisors (see below), whose sum is σ = 139300980. Its totient is φ = 20540160.

The previous prime is 55632191. The next prime is 55632229. The reversal of 55632200 is 223655.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 27478564 + 28153636 = 5242^2 + 5306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8099 + ... + 13298.

Almost surely, 2^55632200 is an apocalyptic number.

55632200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55632200 is an abundant number, since it is smaller than the sum of its proper divisors (83668780).

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

55632200 is a wasteful number, since it uses less digits than its factorization.

55632200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21426 (or 21417 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55632200 is about 7458.6996185662. The cubic root of 55632200 is about 381.7468055269.

Adding to 55632200 its reverse (223655), we get a palindrome (55855855).

The spelling of 55632200 in words is "fifty-five million, six hundred thirty-two thousand, two hundred".