55443253400 has 24 divisors (see below), whose sum is σ = 128905564620. Its totient is φ = 22177301280.

The previous prime is 55443253363. The next prime is 55443253423. The reversal of 55443253400 is 435234455.

It is a super-2 number, since 2×55443253400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138607934 + ... + 138608333.

Almost surely, 2^55443253400 is an apocalyptic number.

55443253400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55443253400 is an abundant number, since it is smaller than the sum of its proper divisors (73462311220).

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

55443253400 is a wasteful number, since it uses less digits than its factorization.

55443253400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277216283 (or 277216274 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 55443253400 its reverse (435234455), we get a palindrome (55878487855).

The spelling of 55443253400 in words is "fifty-five billion, four hundred forty-three million, two hundred fifty-three thousand, four hundred".