67421552 has 20 divisors (see below), whose sum is σ = 142505016. Its totient is φ = 30646080.

The previous prime is 67421539. The next prime is 67421567. The reversal of 67421552 is 25512476.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191363 + ... + 191714.

Almost surely, 2^67421552 is an apocalyptic number.

It is an amenable number.

67421552 is an abundant number, since it is smaller than the sum of its proper divisors (75083464).

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

67421552 is a wasteful number, since it uses less digits than its factorization.

67421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383096 (or 383090 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 67421552 is about 8211.0627813944. The cubic root of 67421552 is about 407.0048475417.

The spelling of 67421552 in words is "sixty-seven million, four hundred twenty-one thousand, five hundred fifty-two".