67242506 has 4 divisors (see below), whose sum is σ = 100863762. Its totient is φ = 33621252.

The previous prime is 67242493. The next prime is 67242569. The reversal of 67242506 is 60524276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65529025 + 1713481 = 8095^2 + 1309^2 .

It is a super-2 number, since 2×67242506² = 9043109226320072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16810625 + ... + 16810628.

Almost surely, 2^67242506 is an apocalyptic number.

67242506 is a deficient number, since it is larger than the sum of its proper divisors (33621256).

67242506 is a wasteful number, since it uses less digits than its factorization.

67242506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33621255.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 67242506 is about 8200.1528034543. The cubic root of 67242506 is about 406.6442447849.

The spelling of 67242506 in words is "sixty-seven million, two hundred forty-two thousand, five hundred six".