55635211200 has 84 divisors (see below), whose sum is σ = 182529871160. Its totient is φ = 14836055040.

The previous prime is 55635211193. The next prime is 55635211207. The reversal of 55635211200 is 211253655.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55635211193) and next prime (55635211207).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55635211207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5790535 + ... + 5800134.

Almost surely, 2^55635211200 is an apocalyptic number.

55635211200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55635211200 is an abundant number, since it is smaller than the sum of its proper divisors (126894659960).

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

55635211200 is a wasteful number, since it uses less digits than its factorization.

55635211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11590694 (or 11590679 counting only the distinct ones).

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

Adding to 55635211200 its reverse (211253655), we get a palindrome (55846464855).

The spelling of 55635211200 in words is "fifty-five billion, six hundred thirty-five million, two hundred eleven thousand, two hundred".