42201045506 has 4 divisors (see below), whose sum is σ = 63301568262. Its totient is φ = 21100522752.

The previous prime is 42201045503. The next prime is 42201045547. The reversal of 42201045506 is 60554010224.

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., 32229225625 + 9971819881 = 179525^2 + 99859^2 .

It is not an unprimeable number, because it can be changed into a prime (42201045503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550261375 + ... + 10550261378.

Almost surely, 2^42201045506 is an apocalyptic number.

42201045506 is a deficient number, since it is larger than the sum of its proper divisors (21100522756).

42201045506 is a wasteful number, since it uses less digits than its factorization.

42201045506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21100522755.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 42201045506 in words is "forty-two billion, two hundred one million, forty-five thousand, five hundred six".