42150503 has 2 divisors, whose sum is σ = 42150504. Its totient is φ = 42150502.

The previous prime is 42150487. The next prime is 42150509. The reversal of 42150503 is 30505124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42150503 - 2⁴ = 42150487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42150509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21075251 + 21075252.

It is an arithmetic number, because the mean of its divisors is an integer number (21075252).

Almost surely, 2^42150503 is an apocalyptic number.

42150503 is a deficient number, since it is larger than the sum of its proper divisors (1).

42150503 is an equidigital number, since it uses as much as digits as its factorization.

42150503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 42150503 is about 6492.3418733151. The cubic root of 42150503 is about 348.0173698777.

Adding to 42150503 its reverse (30505124), we get a palindrome (72655627).

The spelling of 42150503 in words is "forty-two million, one hundred fifty thousand, five hundred three".