53519988 has 36 divisors (see below), whose sum is σ = 130561088. Its totient is φ = 17062320.

The previous prime is 53519969. The next prime is 53519989. The reversal of 53519988 is 88991535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53519989) 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, 2133 + ... + 10563.

Almost surely, 2^53519988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53519988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65280544).

53519988 is an abundant number, since it is smaller than the sum of its proper divisors (77041100).

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

53519988 is a wasteful number, since it uses less digits than its factorization.

53519988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8484 (or 8459 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The square root of 53519988 is about 7315.7356431189. The cubic root of 53519988 is about 376.8530221859.

The spelling of 53519988 in words is "fifty-three million, five hundred nineteen thousand, nine hundred eighty-eight".