53506680 has 128 divisors (see below), whose sum is σ = 167961600. Its totient is φ = 13624832.

The previous prime is 53506639. The next prime is 53506693. The reversal of 53506680 is 8660535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298831 + ... + 299009.

It is an arithmetic number, because the mean of its divisors is an integer number (1312200).

Almost surely, 2^53506680 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 53506680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83980800).

53506680 is an abundant number, since it is smaller than the sum of its proper divisors (114454920).

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

53506680 is a wasteful number, since it uses less digits than its factorization.

53506680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 53506680 is about 7314.8260403102. The cubic root of 53506680 is about 376.8217841634.

The spelling of 53506680 in words is "fifty-three million, five hundred six thousand, six hundred eighty".