53508780 has 108 divisors (see below), whose sum is σ = 175855680. Its totient is φ = 13163904.

The previous prime is 53508761. The next prime is 53508803. The reversal of 53508780 is 8780535.

It is a happy number.

53508780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29541 + ... + 31299.

Almost surely, 2^53508780 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 53508780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87927840).

53508780 is an abundant number, since it is smaller than the sum of its proper divisors (122346900).

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

53508780 is a wasteful number, since it uses less digits than its factorization.

53508780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 53508780 is about 7314.9695829853. The cubic root of 53508780 is about 376.8267138619.

The spelling of 53508780 in words is "fifty-three million, five hundred eight thousand, seven hundred eighty".