67555480 has 16 divisors (see below), whose sum is σ = 151999920. Its totient is φ = 27022176.

The previous prime is 67555463. The next prime is 67555483. The reversal of 67555480 is 8455576.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1688887 = 67555480 / (6 + 7 + 5 + 5 + 5 + 4 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67555483) 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, 844404 + ... + 844483.

It is an arithmetic number, because the mean of its divisors is an integer number (9499995).

Almost surely, 2^67555480 is an apocalyptic number.

It is an amenable number.

67555480 is an abundant number, since it is smaller than the sum of its proper divisors (84444440).

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

67555480 is a wasteful number, since it uses less digits than its factorization.

67555480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688898 (or 1688894 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 67555480 is about 8219.2140743504. The cubic root of 67555480 is about 407.2741644512.

The spelling of 67555480 in words is "sixty-seven million, five hundred fifty-five thousand, four hundred eighty".