247016501 has 2 divisors, whose sum is σ = 247016502. Its totient is φ = 247016500.

The previous prime is 247016479. The next prime is 247016503. The reversal of 247016501 is 105610742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234243025 + 12773476 = 15305^2 + 3574^2 .

It is a cyclic number.

It is not a de Polignac number, because 247016501 - 2⁶ = 247016437 is a prime.

It is a super-2 number, since 2×247016501² = 122034303532566002, which contains 22 as substring.

Together with 247016503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247016503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123508250 + 123508251.

It is an arithmetic number, because the mean of its divisors is an integer number (123508251).

Almost surely, 2^247016501 is an apocalyptic number.

It is an amenable number.

247016501 is a deficient number, since it is larger than the sum of its proper divisors (1).

247016501 is an equidigital number, since it uses as much as digits as its factorization.

247016501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 247016501 is about 15716.7586034780. The cubic root of 247016501 is about 627.4445074020. Note that the first 3 decimals are identical.

The spelling of 247016501 in words is "two hundred forty-seven million, sixteen thousand, five hundred one".