245617056 has 96 divisors (see below), whose sum is σ = 719712000. Its totient is φ = 81492480.

The previous prime is 245616991. The next prime is 245617067. The reversal of 245617056 is 650716542.

It is a happy number.

245617056 is a `hidden beast` number, since 24 + 561 + 70 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 245617056.

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 15 ways as a sum of consecutive naturals, for example, 233620 + ... + 234668.

It is an arithmetic number, because the mean of its divisors is an integer number (7497000).

Almost surely, 2^245617056 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 245617056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359856000).

245617056 is an abundant number, since it is smaller than the sum of its proper divisors (474094944).

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

245617056 is a wasteful number, since it uses less digits than its factorization.

245617056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 245617056 is about 15672.1745778944. The cubic root of 245617056 is about 626.2573565775.

The spelling of 245617056 in words is "two hundred forty-five million, six hundred seventeen thousand, fifty-six".