245978655 has 48 divisors (see below), whose sum is σ = 448686720. Its totient is φ = 114701184.

The previous prime is 245978653. The next prime is 245978699. The reversal of 245978655 is 556879542.

It is not a de Polignac number, because 245978655 - 2¹ = 245978653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245978598 and 245978607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245978653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45612 + ... + 50718.

It is an arithmetic number, because the mean of its divisors is an integer number (9347640).

Almost surely, 2^245978655 is an apocalyptic number.

245978655 is a deficient number, since it is larger than the sum of its proper divisors (202708065).

245978655 is a wasteful number, since it uses less digits than its factorization.

245978655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160 (or 5147 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 51.

The square root of 245978655 is about 15683.7066728500. The cubic root of 245978655 is about 626.5645325792.

The spelling of 245978655 in words is "two hundred forty-five million, nine hundred seventy-eight thousand, six hundred fifty-five".