503365432645541 has 2 divisors, whose sum is σ = 503365432645542. Its totient is φ = 503365432645540.

The previous prime is 503365432645337. The next prime is 503365432645583. The reversal of 503365432645541 is 145546234563305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502670793743041 + 694638902500 = 22420321^2 + 833450^2 .

It is a cyclic number.

It is not a de Polignac number, because 503365432645541 - 2¹⁰ = 503365432644517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503365432647541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251682716322770 + 251682716322771.

It is an arithmetic number, because the mean of its divisors is an integer number (251682716322771).

Almost surely, 2^{503365432645541} is an apocalyptic number.

It is an amenable number.

503365432645541 is a deficient number, since it is larger than the sum of its proper divisors (1).

503365432645541 is an equidigital number, since it uses as much as digits as its factorization.

503365432645541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760000, while the sum is 56.

The spelling of 503365432645541 in words is "five hundred three trillion, three hundred sixty-five billion, four hundred thirty-two million, six hundred forty-five thousand, five hundred forty-one".