200520054 has 72 divisors (see below), whose sum is σ = 513815328. Its totient is φ = 56337120.

The previous prime is 200520043. The next prime is 200520071. The reversal of 200520054 is 450025002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51939 + ... + 55665.

It is an arithmetic number, because the mean of its divisors is an integer number (7136324).

Almost surely, 2^200520054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200520054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256907664).

200520054 is an abundant number, since it is smaller than the sum of its proper divisors (313295274).

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

200520054 is a wasteful number, since it uses less digits than its factorization.

200520054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810 (or 3800 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 200520054 is about 14160.5103721582. The cubic root of 200520054 is about 585.3099913061.

Adding to 200520054 its reverse (450025002), we get a palindrome (650545056).

The spelling of 200520054 in words is "two hundred million, five hundred twenty thousand, fifty-four".