42652272506 has 4 divisors (see below), whose sum is σ = 63978408762. Its totient is φ = 21326136252.

The previous prime is 42652272503. The next prime is 42652272511. The reversal of 42652272506 is 60527225624.

It is a happy number.

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., 42460311481 + 191961025 = 206059^2 + 13855^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42652272503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10663068125 + ... + 10663068128.

Almost surely, 2^42652272506 is an apocalyptic number.

42652272506 is a deficient number, since it is larger than the sum of its proper divisors (21326136256).

42652272506 is a wasteful number, since it uses less digits than its factorization.

42652272506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21326136255.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 42652272506 in words is "forty-two billion, six hundred fifty-two million, two hundred seventy-two thousand, five hundred six".