42251303 has 2 divisors, whose sum is σ = 42251304. Its totient is φ = 42251302.

The previous prime is 42251291. The next prime is 42251311. The reversal of 42251303 is 30315224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42251303 - 2¹⁰ = 42250279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42251323) 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 as a sum of consecutive naturals, namely, 21125651 + 21125652.

It is an arithmetic number, because the mean of its divisors is an integer number (21125652).

Almost surely, 2^42251303 is an apocalyptic number.

42251303 is a deficient number, since it is larger than the sum of its proper divisors (1).

42251303 is an equidigital number, since it uses as much as digits as its factorization.

42251303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42251303 is about 6500.1002299965. The cubic root of 42251303 is about 348.2945688162.

Adding to 42251303 its reverse (30315224), we get a palindrome (72566527).

The spelling of 42251303 in words is "forty-two million, two hundred fifty-one thousand, three hundred three".