202251052442 has 4 divisors (see below), whose sum is σ = 303376578666. Its totient is φ = 101125526220.

The previous prime is 202251052441. The next prime is 202251052447. The reversal of 202251052442 is 244250152202.

It is a happy number.

202251052442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 189025822441 + 13225230001 = 434771^2 + 115001^2 .

It is not an unprimeable number, because it can be changed into a prime (202251052441) 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, 50562763109 + ... + 50562763112.

Almost surely, 2^202251052442 is an apocalyptic number.

202251052442 is a deficient number, since it is larger than the sum of its proper divisors (101125526224).

202251052442 is a wasteful number, since it uses less digits than its factorization.

202251052442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101125526223.

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 202251052442 in words is "two hundred two billion, two hundred fifty-one million, fifty-two thousand, four hundred forty-two".