53198900 has 18 divisors (see below), whose sum is σ = 115441830. Its totient is φ = 21279520.

The previous prime is 53198897. The next prime is 53198911. The reversal of 53198900 is 989135.

It can be written as a sum of positive squares in 3 ways, for example, as 8549776 + 44649124 = 2924^2 + 6682^2 .

It is a super-2 number, since 2×53198900² = 5660245922420000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265895 + ... + 266094.

It is an arithmetic number, because the mean of its divisors is an integer number (6413435).

Almost surely, 2^53198900 is an apocalyptic number.

53198900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53198900 is an abundant number, since it is smaller than the sum of its proper divisors (62242930).

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

53198900 is a wasteful number, since it uses less digits than its factorization.

53198900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532003 (or 531996 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 53198900 is about 7293.7576049660. The cubic root of 53198900 is about 376.0978789245.

The spelling of 53198900 in words is "fifty-three million, one hundred ninety-eight thousand, nine hundred".