200055531 has 16 divisors (see below), whose sum is σ = 287721504. Its totient is φ = 122913024.

The previous prime is 200055517. The next prime is 200055577. The reversal of 200055531 is 135550002.

It is not a de Polignac number, because 200055531 - 2⁶ = 200055467 is a prime.

It is a super-2 number, since 2×200055531² = 80044430967383922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200055498 and 200055507.

It is not an unprimeable number, because it can be changed into a prime (200055631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22615 + ... + 30191.

It is an arithmetic number, because the mean of its divisors is an integer number (17982594).

Almost surely, 2^200055531 is an apocalyptic number.

200055531 is a deficient number, since it is larger than the sum of its proper divisors (87665973).

200055531 is a wasteful number, since it uses less digits than its factorization.

200055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 200055531 is about 14144.0988048020. The cubic root of 200055531 is about 584.8576671770.

The spelling of 200055531 in words is "two hundred million, fifty-five thousand, five hundred thirty-one".