245558655 has 32 divisors (see below), whose sum is σ = 437238720. Its totient is φ = 130757760.

The previous prime is 245558633. The next prime is 245558671. The reversal of 245558655 is 556855542.

245558655 is a `hidden beast` number, since 2 + 45 + 558 + 6 + 55 = 666.

It is not a de Polignac number, because 245558655 - 2¹² = 245554559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 245558655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126069 + ... + 128001.

It is an arithmetic number, because the mean of its divisors is an integer number (13663710).

Almost surely, 2^245558655 is an apocalyptic number.

245558655 is a deficient number, since it is larger than the sum of its proper divisors (191680065).

245558655 is a wasteful number, since it uses less digits than its factorization.

245558655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 2882 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The square root of 245558655 is about 15670.3112604696. The cubic root of 245558655 is about 626.2077170348.

The spelling of 245558655 in words is "two hundred forty-five million, five hundred fifty-eight thousand, six hundred fifty-five".