245514756221 has 12 divisors (see below), whose sum is σ = 286166617632. Its totient is φ = 210022826328.

The previous prime is 245514756203. The next prime is 245514756229. The reversal of 245514756221 is 122657415542.

It is not a de Polignac number, because 245514756221 - 2¹⁴ = 245514739837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245514756229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4955975 + ... + 5005268.

It is an arithmetic number, because the mean of its divisors is an integer number (23847218136).

Almost surely, 2^245514756221 is an apocalyptic number.

It is an amenable number.

245514756221 is a deficient number, since it is larger than the sum of its proper divisors (40651861411).

245514756221 is an equidigital number, since it uses as much as digits as its factorization.

245514756221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961760 (or 9961753 counting only the distinct ones).

The product of its digits is 672000, while the sum is 44.

The spelling of 245514756221 in words is "two hundred forty-five billion, five hundred fourteen million, seven hundred fifty-six thousand, two hundred twenty-one".