55281300 has 36 divisors (see below), whose sum is σ = 159948096. Its totient is φ = 14741600.

The previous prime is 55281299. The next prime is 55281301. The reversal of 55281300 is 318255.

It is an interprime number because it is at equal distance from previous prime (55281299) and next prime (55281301).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55281301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91836 + ... + 92435.

Almost surely, 2^55281300 is an apocalyptic number.

55281300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55281300 is an abundant number, since it is smaller than the sum of its proper divisors (104666796).

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

55281300 is a wasteful number, since it uses less digits than its factorization.

55281300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184288 (or 184281 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 55281300 is about 7435.1395413940. The cubic root of 55281300 is about 380.9424896489.

Adding to 55281300 its reverse (318255), we get a palindrome (55599555).

The spelling of 55281300 in words is "fifty-five million, two hundred eighty-one thousand, three hundred".