53198388 has 36 divisors (see below), whose sum is σ = 134752800. Its totient is φ = 17696016.

The previous prime is 53198381. The next prime is 53198401. The reversal of 53198388 is 88389135.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53198381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20331 + ... + 22797.

Almost surely, 2^53198388 is an apocalyptic number.

It is an amenable number.

53198388 is an abundant number, since it is smaller than the sum of its proper divisors (81554412).

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

53198388 is a wasteful number, since it uses less digits than its factorization.

53198388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3071 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 53198388 is about 7293.7225063749. The cubic root of 53198388 is about 376.0966723662.

The spelling of 53198388 in words is "fifty-three million, one hundred ninety-eight thousand, three hundred eighty-eight".