42253061 has 4 divisors (see below), whose sum is σ = 42269292. Its totient is φ = 42236832.

The previous prime is 42253051. The next prime is 42253063. The reversal of 42253061 is 16035224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 27888961 = 3790^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253061 - 2¹⁸ = 41990917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42253063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (10567323).

Almost surely, 2^42253061 is an apocalyptic number.

It is an amenable number.

42253061 is a deficient number, since it is larger than the sum of its proper divisors (16231).

42253061 is a wasteful number, since it uses less digits than its factorization.

42253061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16230.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42253061 is about 6500.2354572738. The cubic root of 42253061 is about 348.2993993840.

Adding to 42253061 its reverse (16035224), we get a palindrome (58288285).

The spelling of 42253061 in words is "forty-two million, two hundred fifty-three thousand, sixty-one".