42052403 has 2 divisors, whose sum is σ = 42052404. Its totient is φ = 42052402.

The previous prime is 42052379. The next prime is 42052447. The reversal of 42052403 is 30425024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42052403 - 2⁸ = 42052147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42051403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21026201 + 21026202.

It is an arithmetic number, because the mean of its divisors is an integer number (21026202).

Almost surely, 2^42052403 is an apocalyptic number.

42052403 is a deficient number, since it is larger than the sum of its proper divisors (1).

42052403 is an equidigital number, since it uses as much as digits as its factorization.

42052403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42052403 is about 6484.7824173213. The cubic root of 42052403 is about 347.7471712501.

Adding to 42052403 its reverse (30425024), we get a palindrome (72477427).

The spelling of 42052403 in words is "forty-two million, fifty-two thousand, four hundred three".