67520000 has 100 divisors (see below), whose sum is σ = 169380156. Its totient is φ = 26880000.

The previous prime is 67519999. The next prime is 67520003. The reversal of 67520000 is 2576.

67520000 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (100).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67520003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 319895 + ... + 320105.

Almost surely, 2^67520000 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 67520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84690078).

67520000 is an abundant number, since it is smaller than the sum of its proper divisors (101860156).

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

67520000 is an frugal number, since it uses more digits than its factorization.

67520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 218 counting only the distinct ones).

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

The square root of 67520000 is about 8217.0554336697. The cubic root of 67520000 is about 407.2028521125.

Adding to 67520000 its reverse (2576), we get a palindrome (67522576).

The spelling of 67520000 in words is "sixty-seven million, five hundred twenty thousand".