67242057 has 4 divisors (see below), whose sum is σ = 89656080. Its totient is φ = 44828036.

The previous prime is 67242053. The next prime is 67242059. The reversal of 67242057 is 75024276.

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 67242057 - 2² = 67242053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67242053) 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, 11207007 + ... + 11207012.

It is an arithmetic number, because the mean of its divisors is an integer number (22414020).

Almost surely, 2^67242057 is an apocalyptic number.

It is an amenable number.

67242057 is a deficient number, since it is larger than the sum of its proper divisors (22414023).

67242057 is a wasteful number, since it uses less digits than its factorization.

67242057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22414022.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 67242057 is about 8200.1254258700. The cubic root of 67242057 is about 406.6433396844.

The spelling of 67242057 in words is "sixty-seven million, two hundred forty-two thousand, fifty-seven".