503775997 has 2 divisors, whose sum is σ = 503775998. Its totient is φ = 503775996.

The previous prime is 503775991. The next prime is 503776067. The reversal of 503775997 is 799577305.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498807556 + 4968441 = 22334^2 + 2229^2 .

It is a cyclic number.

It is not a de Polignac number, because 503775997 - 2⁷ = 503775869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503775991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251887998 + 251887999.

It is an arithmetic number, because the mean of its divisors is an integer number (251887999).

Almost surely, 2^503775997 is an apocalyptic number.

It is an amenable number.

503775997 is a deficient number, since it is larger than the sum of its proper divisors (1).

503775997 is an equidigital number, since it uses as much as digits as its factorization.

503775997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2083725, while the sum is 52.

The square root of 503775997 is about 22444.9548228550. The cubic root of 503775997 is about 795.6935245378.

The spelling of 503775997 in words is "five hundred three million, seven hundred seventy-five thousand, nine hundred ninety-seven".