67520 has 28 divisors (see below), whose sum is σ = 161544. Its totient is φ = 26880.

The previous prime is 67511. The next prime is 67523. The reversal of 67520 is 2576.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 67492 and 67501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215 + ... + 425.

2⁶⁷⁵²⁰ 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 67520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80772).

67520 is an abundant number, since it is smaller than the sum of its proper divisors (94024).

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

67520 is a wasteful number, since it uses less digits than its factorization.

67520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 67520 is about 259.8461083026. The cubic root of 67520 is about 40.7202852112.

The spelling of 67520 in words is "sixty-seven thousand, five hundred twenty".