198552331 has 8 divisors (see below), whose sum is σ = 199989504. Its totient is φ = 197119680.

The previous prime is 198552313. The next prime is 198552373. The reversal of 198552331 is 133255891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198552331 - 2⁷ = 198552203 is a prime.

It is a super-2 number, since 2×198552331² = 78846056291067122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198552301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163081 + ... + 164293.

It is an arithmetic number, because the mean of its divisors is an integer number (24998688).

Almost surely, 2^198552331 is an apocalyptic number.

198552331 is a deficient number, since it is larger than the sum of its proper divisors (1437173).

198552331 is a wasteful number, since it uses less digits than its factorization.

198552331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its digits is 32400, while the sum is 37.

The square root of 198552331 is about 14090.8598389169. The cubic root of 198552331 is about 583.3891261647.

The spelling of 198552331 in words is "one hundred ninety-eight million, five hundred fifty-two thousand, three hundred thirty-one".