55229500 has 24 divisors (see below), whose sum is σ = 120622320. Its totient is φ = 22091600.

The previous prime is 55229497. The next prime is 55229513. The reversal of 55229500 is 592255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54730 + ... + 55729.

It is an arithmetic number, because the mean of its divisors is an integer number (5025930).

Almost surely, 2^55229500 is an apocalyptic number.

55229500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55229500 is an abundant number, since it is smaller than the sum of its proper divisors (65392820).

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

55229500 is a wasteful number, since it uses less digits than its factorization.

55229500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110478 (or 110466 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 55229500 is about 7431.6552664935. The cubic root of 55229500 is about 380.8234681621.

The spelling of 55229500 in words is "fifty-five million, two hundred twenty-nine thousand, five hundred".