200945550 has 48 divisors (see below), whose sum is σ = 536684400. Its totient is φ = 49463040.

The previous prime is 200945543. The next prime is 200945581. The reversal of 200945550 is 55549002.

It is a happy number.

It is a super-2 number, since 2×200945550² = 80758228129605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49575 + ... + 53474.

It is an arithmetic number, because the mean of its divisors is an integer number (11180925).

Almost surely, 2^200945550 is an apocalyptic number.

200945550 is an abundant number, since it is smaller than the sum of its proper divisors (335738850).

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

200945550 is a wasteful number, since it uses less digits than its factorization.

200945550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103077 (or 103072 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 200945550 is about 14175.5264452506. The cubic root of 200945550 is about 585.7237007353.

The spelling of 200945550 in words is "two hundred million, nine hundred forty-five thousand, five hundred fifty".