198525972 has 24 divisors (see below), whose sum is σ = 483368256. Its totient is φ = 63298048.

The previous prime is 198525947. The next prime is 198525991. The reversal of 198525972 is 279525891.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359373 + ... + 359924.

It is an arithmetic number, because the mean of its divisors is an integer number (20140344).

Almost surely, 2^198525972 is an apocalyptic number.

198525972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198525972 is an abundant number, since it is smaller than the sum of its proper divisors (284842284).

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

198525972 is a wasteful number, since it uses less digits than its factorization.

198525972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719327 (or 719325 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The square root of 198525972 is about 14089.9244852483. The cubic root of 198525972 is about 583.3633088995.

The spelling of 198525972 in words is "one hundred ninety-eight million, five hundred twenty-five thousand, nine hundred seventy-two".