55442600 has 24 divisors (see below), whose sum is σ = 128904510. Its totient is φ = 22176960.

The previous prime is 55442599. The next prime is 55442603. The reversal of 55442600 is 624455.

It can be written as a sum of positive squares in 3 ways, for example, as 46430596 + 9012004 = 6814^2 + 3002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55442600.

It is not an unprimeable number, because it can be changed into a prime (55442603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138407 + ... + 138806.

Almost surely, 2^55442600 is an apocalyptic number.

55442600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55442600 is an abundant number, since it is smaller than the sum of its proper divisors (73461910).

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

55442600 is a wasteful number, since it uses less digits than its factorization.

55442600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277229 (or 277220 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 55442600 is about 7445.9787805231. The cubic root of 55442600 is about 381.3126350554.

The spelling of 55442600 in words is "fifty-five million, four hundred forty-two thousand, six hundred".