67042553 has 4 divisors (see below), whose sum is σ = 69205248. Its totient is φ = 64879860.

The previous prime is 67042541. The next prime is 67042571. The reversal of 67042553 is 35524076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67042553 - 2⁴ = 67042537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67042513) 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, 1081301 + ... + 1081362.

It is an arithmetic number, because the mean of its divisors is an integer number (17301312).

Almost surely, 2^67042553 is an apocalyptic number.

It is an amenable number.

67042553 is a deficient number, since it is larger than the sum of its proper divisors (2162695).

67042553 is a wasteful number, since it uses less digits than its factorization.

67042553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162694.

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

The square root of 67042553 is about 8187.9516974638. The cubic root of 67042553 is about 406.2407774474.

The spelling of 67042553 in words is "sixty-seven million, forty-two thousand, five hundred fifty-three".