53669880 has 96 divisors (see below), whose sum is σ = 190298160. Its totient is φ = 13009920.

The previous prime is 53669873. The next prime is 53669909. The reversal of 53669880 is 8896635.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2817 + ... + 10736.

Almost surely, 2^53669880 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 53669880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95149080).

53669880 is an abundant number, since it is smaller than the sum of its proper divisors (136628280).

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

53669880 is a wasteful number, since it uses less digits than its factorization.

53669880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13581 (or 13574 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 53669880 is about 7325.9729729231. The cubic root of 53669880 is about 377.2045083197.

The spelling of 53669880 in words is "fifty-three million, six hundred sixty-nine thousand, eight hundred eighty".