245501447 has 2 divisors, whose sum is σ = 245501448. Its totient is φ = 245501446.

The previous prime is 245501411. The next prime is 245501449. The reversal of 245501447 is 744105542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245501447 - 2¹⁸ = 245239303 is a prime.

Together with 245501449, 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 (245501449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122750723 + 122750724.

It is an arithmetic number, because the mean of its divisors is an integer number (122750724).

Almost surely, 2^245501447 is an apocalyptic number.

245501447 is a deficient number, since it is larger than the sum of its proper divisors (1).

245501447 is an equidigital number, since it uses as much as digits as its factorization.

245501447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 245501447 is about 15668.4857915499. The cubic root of 245501447 is about 626.1590838838.

Adding to 245501447 its reverse (744105542), we get a palindrome (989606989).

The spelling of 245501447 in words is "two hundred forty-five million, five hundred one thousand, four hundred forty-seven".