201550224 has 20 divisors (see below), whose sum is σ = 520671536. Its totient is φ = 67183392.

The previous prime is 201550213. The next prime is 201550243. The reversal of 201550224 is 422055102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201550224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099434 + ... + 2099529.

Almost surely, 2^201550224 is an apocalyptic number.

201550224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201550224 is an abundant number, since it is smaller than the sum of its proper divisors (319121312).

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

201550224 is a wasteful number, since it uses less digits than its factorization.

201550224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198974 (or 4198968 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 201550224 is about 14196.8385213047. The cubic root of 201550224 is about 586.3106213122.

The spelling of 201550224 in words is "two hundred one million, five hundred fifty thousand, two hundred twenty-four".