42503411 has 2 divisors, whose sum is σ = 42503412. Its totient is φ = 42503410.

The previous prime is 42503407. The next prime is 42503413. The reversal of 42503411 is 11430524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42503411 - 2² = 42503407 is a prime.

Together with 42503413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42503413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21251705 + 21251706.

It is an arithmetic number, because the mean of its divisors is an integer number (21251706).

Almost surely, 2^42503411 is an apocalyptic number.

42503411 is a deficient number, since it is larger than the sum of its proper divisors (1).

42503411 is an equidigital number, since it uses as much as digits as its factorization.

42503411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 42503411 is about 6519.4640117114. The cubic root of 42503411 is about 348.9859382462.

Adding to 42503411 its reverse (11430524), we get a palindrome (53933935).

The spelling of 42503411 in words is "forty-two million, five hundred three thousand, four hundred eleven".