245644055 has 4 divisors (see below), whose sum is σ = 294772872. Its totient is φ = 196515240.

The previous prime is 245643991. The next prime is 245644111. The reversal of 245644055 is 550446542.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245644055 - 2⁶ = 245643991 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 24564401 + ... + 24564410.

It is an arithmetic number, because the mean of its divisors is an integer number (73693218).

Almost surely, 2^245644055 is an apocalyptic number.

245644055 is a deficient number, since it is larger than the sum of its proper divisors (49128817).

245644055 is an equidigital number, since it uses as much as digits as its factorization.

245644055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49128816.

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 245644055 is about 15673.0359216075. The cubic root of 245644055 is about 626.2803024635.

The spelling of 245644055 in words is "two hundred forty-five million, six hundred forty-four thousand, fifty-five".