42022513 has 4 divisors (see below), whose sum is σ = 45255028. Its totient is φ = 38790000.

The previous prime is 42022511. The next prime is 42022543. The reversal of 42022513 is 31522024.

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 4359744 + 37662769 = 2088^2 + 6137^2 .

It is a cyclic number.

It is not a de Polignac number, because 42022513 - 2¹ = 42022511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42022511) 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, 1616238 + ... + 1616263.

It is an arithmetic number, because the mean of its divisors is an integer number (11313757).

Almost surely, 2^42022513 is an apocalyptic number.

It is an amenable number.

42022513 is a deficient number, since it is larger than the sum of its proper divisors (3232515).

42022513 is a wasteful number, since it uses less digits than its factorization.

42022513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232514.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42022513 is about 6482.4773813720. The cubic root of 42022513 is about 347.6647611630.

Adding to 42022513 its reverse (31522024), we get a palindrome (73544537).

The spelling of 42022513 in words is "forty-two million, twenty-two thousand, five hundred thirteen".