503401541 has 2 divisors, whose sum is σ = 503401542. Its totient is φ = 503401540.

The previous prime is 503401519. The next prime is 503401589. The reversal of 503401541 is 145104305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446096641 + 57304900 = 21121^2 + 7570^2 .

It is a cyclic number.

It is not a de Polignac number, because 503401541 - 2⁶ = 503401477 is a prime.

It is a super-2 number, since 2×503401541² = 506826222962349362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503401441) 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, 251700770 + 251700771.

It is an arithmetic number, because the mean of its divisors is an integer number (251700771).

Almost surely, 2^503401541 is an apocalyptic number.

It is an amenable number.

503401541 is a deficient number, since it is larger than the sum of its proper divisors (1).

503401541 is an equidigital number, since it uses as much as digits as its factorization.

503401541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 503401541 is about 22436.6116202960. The cubic root of 503401541 is about 795.4963297070.

Adding to 503401541 its reverse (145104305), we get a palindrome (648505846).

The spelling of 503401541 in words is "five hundred three million, four hundred one thousand, five hundred forty-one".