67553420 has 48 divisors (see below), whose sum is σ = 157102848. Its totient is φ = 24192960.

The previous prime is 67553411. The next prime is 67553443. The reversal of 67553420 is 2435576.

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, 12449 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (3272976).

Almost surely, 2^67553420 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 67553420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78551424).

67553420 is an abundant number, since it is smaller than the sum of its proper divisors (89549428).

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

67553420 is a wasteful number, since it uses less digits than its factorization.

67553420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670 (or 4668 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 67553420 is about 8219.0887572772. The cubic root of 67553420 is about 407.2700246770.

Adding to 67553420 its reverse (2435576), we get a palindrome (69988996).

The spelling of 67553420 in words is "sixty-seven million, five hundred fifty-three thousand, four hundred twenty".