42026513 has 2 divisors, whose sum is σ = 42026514. Its totient is φ = 42026512.

The previous prime is 42026473. The next prime is 42026521. The reversal of 42026513 is 31562024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32341969 + 9684544 = 5687^2 + 3112^2 .

It is a cyclic number.

It is not a de Polignac number, because 42026513 - 2⁶ = 42026449 is a prime.

It is not a weakly prime, because it can be changed into another prime (42026573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21013256 + 21013257.

It is an arithmetic number, because the mean of its divisors is an integer number (21013257).

Almost surely, 2^42026513 is an apocalyptic number.

It is an amenable number.

42026513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42026513 is an equidigital number, since it uses as much as digits as its factorization.

42026513 is an evil number, because the sum of its binary digits is even.

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

The square root of 42026513 is about 6482.7858980534. The cubic root of 42026513 is about 347.6757918767.

Adding to 42026513 its reverse (31562024), we get a palindrome (73588537).

The spelling of 42026513 in words is "forty-two million, twenty-six thousand, five hundred thirteen".