505152997 has 2 divisors, whose sum is σ = 505152998. Its totient is φ = 505152996.

The previous prime is 505152983. The next prime is 505153003. The reversal of 505152997 is 799251505.

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., 286083396 + 219069601 = 16914^2 + 14801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505152997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505152917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252576498 + 252576499.

It is an arithmetic number, because the mean of its divisors is an integer number (252576499).

Almost surely, 2^505152997 is an apocalyptic number.

It is an amenable number.

505152997 is a deficient number, since it is larger than the sum of its proper divisors (1).

505152997 is an equidigital number, since it uses as much as digits as its factorization.

505152997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 43.

The square root of 505152997 is about 22475.6089350211. The cubic root of 505152997 is about 796.4178366772.

The spelling of 505152997 in words is "five hundred five million, one hundred fifty-two thousand, nine hundred ninety-seven".