503512540505497 has 2 divisors, whose sum is σ = 503512540505498. Its totient is φ = 503512540505496.

The previous prime is 503512540505411. The next prime is 503512540505549. The reversal of 503512540505497 is 794505045215305.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415829748745216 + 87682791760281 = 20391904^2 + 9363909^2 .

It is a cyclic number.

It is not a de Polignac number, because 503512540505497 - 2²³ = 503512532116889 is a prime.

It is not a weakly prime, because it can be changed into another prime (503512540505407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251756270252748 + 251756270252749.

It is an arithmetic number, because the mean of its divisors is an integer number (251756270252749).

Almost surely, 2^{503512540505497} is an apocalyptic number.

It is an amenable number.

503512540505497 is a deficient number, since it is larger than the sum of its proper divisors (1).

503512540505497 is an equidigital number, since it uses as much as digits as its factorization.

503512540505497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 503512540505497 in words is "five hundred three trillion, five hundred twelve billion, five hundred forty million, five hundred five thousand, four hundred ninety-seven".