503795681 has 2 divisors, whose sum is σ = 503795682. Its totient is φ = 503795680.

The previous prime is 503795653. The next prime is 503795693. The reversal of 503795681 is 186597305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366531025 + 137264656 = 19145^2 + 11716^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503795681 is a prime.

It is a super-2 number, since 2×503795681² = 507620176388507522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (503795651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251897840 + 251897841.

It is an arithmetic number, because the mean of its divisors is an integer number (251897841).

Almost surely, 2^503795681 is an apocalyptic number.

It is an amenable number.

503795681 is a deficient number, since it is larger than the sum of its proper divisors (1).

503795681 is an equidigital number, since it uses as much as digits as its factorization.

503795681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 503795681 is about 22445.3933135510. The cubic root of 503795681 is about 795.7038877597.

The spelling of 503795681 in words is "five hundred three million, seven hundred ninety-five thousand, six hundred eighty-one".