245565100 has 36 divisors (see below), whose sum is σ = 581322168. Its totient is φ = 89296000.

The previous prime is 245565049. The next prime is 245565121. The reversal of 245565100 is 1565542.

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 11 ways as a sum of consecutive naturals, for example, 110521 + ... + 112720.

It is an arithmetic number, because the mean of its divisors is an integer number (16147838).

Almost surely, 2^245565100 is an apocalyptic number.

245565100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245565100 is an abundant number, since it is smaller than the sum of its proper divisors (335757068).

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

245565100 is a wasteful number, since it uses less digits than its factorization.

245565100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223266 (or 223259 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 245565100 is about 15670.5169027700. The cubic root of 245565100 is about 626.2131955268.

The spelling of 245565100 in words is "two hundred forty-five million, five hundred sixty-five thousand, one hundred".