2505150997 has 2 divisors, whose sum is σ = 2505150998. Its totient is φ = 2505150996.

The previous prime is 2505150979. The next prime is 2505151037. The reversal of 2505150997 is 7990515052.

It is a happy number.

Together with previous prime (2505150979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362643396 + 1142507601 = 36914^2 + 33801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505150997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505157997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252575498 + 1252575499.

It is an arithmetic number, because the mean of its divisors is an integer number (1252575499).

Almost surely, 2^2505150997 is an apocalyptic number.

It is an amenable number.

2505150997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505150997 is an equidigital number, since it uses as much as digits as its factorization.

2505150997 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2505150997 is about 50051.4834645288. The cubic root of 2505150997 is about 1358.1402993091.

The spelling of 2505150997 in words is "two billion, five hundred five million, one hundred fifty thousand, nine hundred ninety-seven".