67521480 has 64 divisors (see below), whose sum is σ = 218151360. Its totient is φ = 16620288.

The previous prime is 67521479. The next prime is 67521499. The reversal of 67521480 is 8412576.

It is a super-2 number, since 2×67521480² = 9118300522780800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20082 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (3408615).

Almost surely, 2^67521480 is an apocalyptic number.

67521480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67521480 is an abundant number, since it is smaller than the sum of its proper divisors (150629880).

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

67521480 is a wasteful number, since it uses less digits than its factorization.

67521480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43310 (or 43306 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 67521480 is about 8217.1454897671. The cubic root of 67521480 is about 407.2058273091.

It can be divided in two parts, 675 and 21480, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 67521480 in words is "sixty-seven million, five hundred twenty-one thousand, four hundred eighty".