245406855 has 16 divisors (see below), whose sum is σ = 393354720. Its totient is φ = 130649088.

The previous prime is 245406841. The next prime is 245406893. The reversal of 245406855 is 558604542.

It is not a de Polignac number, because 245406855 - 2⁴ = 245406839 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5842 + ... + 22911.

It is an arithmetic number, because the mean of its divisors is an integer number (24584670).

Almost surely, 2^245406855 is an apocalyptic number.

245406855 is a deficient number, since it is larger than the sum of its proper divisors (147947865).

245406855 is a wasteful number, since it uses less digits than its factorization.

245406855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29330.

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 245406855 is about 15665.4669576109. The cubic root of 245406855 is about 626.0786536060.

The spelling of 245406855 in words is "two hundred forty-five million, four hundred six thousand, eight hundred fifty-five".