53998500 has 48 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 14399200.

The previous prime is 53998499. The next prime is 53998501. The reversal of 53998500 is 589935.

It is an interprime number because it is at equal distance from previous prime (53998499) and next prime (53998501).

It is not an unprimeable number, because it can be changed into a prime (53998501) 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, 16500 + ... + 19499.

It is an arithmetic number, because the mean of its divisors is an integer number (3276000).

Almost surely, 2^53998500 is an apocalyptic number.

53998500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53998500 is an abundant number, since it is smaller than the sum of its proper divisors (103249500).

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

53998500 is a wasteful number, since it uses less digits than its factorization.

53998500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36021 (or 36009 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 53998500 is about 7348.3671655681. The cubic root of 53998500 is about 377.9728151554.

The spelling of 53998500 in words is "fifty-three million, nine hundred ninety-eight thousand, five hundred".