245920256 has 40 divisors (see below), whose sum is σ = 493646604. Its totient is φ = 122388480.

The previous prime is 245920237. The next prime is 245920267. The reversal of 245920256 is 652029542.

245920256 is digitally balanced in base 3, 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 2 ways, for example, as 230553856 + 15366400 = 15184^2 + 3920^2 .

It is a super-2 number, since 2×245920256² = 120953544622211072, which contains 22 as substring.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122396 + ... + 124388.

Almost surely, 2^245920256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245920256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246823302).

245920256 is an abundant number, since it is smaller than the sum of its proper divisors (247726348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245920256 is an equidigital number, since it uses as much as digits as its factorization.

245920256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 245920256 is about 15681.8447894372. The cubic root of 245920256 is about 626.5149434008.

Adding to 245920256 its reverse (652029542), we get a palindrome (897949798).

The spelling of 245920256 in words is "two hundred forty-five million, nine hundred twenty thousand, two hundred fifty-six".