245559888 has 120 divisors (see below), whose sum is σ = 798907200. Its totient is φ = 68954112.

The previous prime is 245559877. The next prime is 245559943. The reversal of 245559888 is 888955542.

It is a happy number.

245559888 is a `hidden beast` number, since 2 + 4 + 5 + 559 + 8 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57408 + ... + 61536.

It is an arithmetic number, because the mean of its divisors is an integer number (6657560).

Almost surely, 2^245559888 is an apocalyptic number.

245559888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245559888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399453600).

245559888 is an abundant number, since it is smaller than the sum of its proper divisors (553347312).

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

245559888 is a wasteful number, since it uses less digits than its factorization.

245559888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 4200 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 54.

The square root of 245559888 is about 15670.3506023318. The cubic root of 245559888 is about 626.2087651385.

It can be divided in two parts, 24555 and 9888, that added together give a palindrome (34443).

The spelling of 245559888 in words is "two hundred forty-five million, five hundred fifty-nine thousand, eight hundred eighty-eight".