55226400 has 72 divisors (see below), whose sum is σ = 179769744. Its totient is φ = 14726400.

The previous prime is 55226393. The next prime is 55226429. The reversal of 55226400 is 462255.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 9106 + ... + 13905.

It is an arithmetic number, because the mean of its divisors is an integer number (2496802).

Almost surely, 2^55226400 is an apocalyptic number.

55226400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55226400 is an abundant number, since it is smaller than the sum of its proper divisors (124543344).

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

55226400 is a wasteful number, since it uses less digits than its factorization.

55226400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23034 (or 23021 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55226400 is about 7431.4466963035. The cubic root of 55226400 is about 380.8163428949.

Adding to 55226400 its reverse (462255), we get a palindrome (55688655).

The spelling of 55226400 in words is "fifty-five million, two hundred twenty-six thousand, four hundred".