245256401 has 8 divisors (see below), whose sum is σ = 264476520. Its totient is φ = 226086912.

The previous prime is 245256379. The next prime is 245256437. The reversal of 245256401 is 104652542.

245256401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8065600 + 237190801 = 2840^2 + 15401^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245256401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245256001) 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, 2270 + ... + 22263.

It is an arithmetic number, because the mean of its divisors is an integer number (33059565).

Almost surely, 2^245256401 is an apocalyptic number.

It is an amenable number.

245256401 is a deficient number, since it is larger than the sum of its proper divisors (19220119).

245256401 is a wasteful number, since it uses less digits than its factorization.

245256401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25315.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 245256401 is about 15660.6641302341. The cubic root of 245256401 is about 625.9506820460.

The spelling of 245256401 in words is "two hundred forty-five million, two hundred fifty-six thousand, four hundred one".