245521423 has 8 divisors (see below), whose sum is σ = 281715840. Its totient is φ = 209607000.

The previous prime is 245521421. The next prime is 245521447. The reversal of 245521423 is 324125542.

245521423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245521423 - 2¹ = 245521421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245521391 and 245521400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245521421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68113 + ... + 71626.

It is an arithmetic number, because the mean of its divisors is an integer number (35214480).

Almost surely, 2^245521423 is an apocalyptic number.

245521423 is a deficient number, since it is larger than the sum of its proper divisors (36194417).

245521423 is a wasteful number, since it uses less digits than its factorization.

245521423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139997.

The product of its digits is 9600, while the sum is 28.

The square root of 245521423 is about 15669.1232364801. The cubic root of 245521423 is about 626.1760665598.

Adding to 245521423 its reverse (324125542), we get a palindrome (569646965).

The spelling of 245521423 in words is "two hundred forty-five million, five hundred twenty-one thousand, four hundred twenty-three".