4025665655 has 16 divisors (see below), whose sum is σ = 5292597024. Its totient is φ = 2915182080.

The previous prime is 4025665649. The next prime is 4025665669. The reversal of 4025665655 is 5565665204.

It is not a de Polignac number, because 4025665655 - 2²² = 4021471351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144254 + ... + 169883.

It is an arithmetic number, because the mean of its divisors is an integer number (330787314).

Almost surely, 2^4025665655 is an apocalyptic number.

4025665655 is a deficient number, since it is larger than the sum of its proper divisors (1266931369).

4025665655 is a wasteful number, since it uses less digits than its factorization.

4025665655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314386.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The square root of 4025665655 is about 63448.1335816902. The cubic root of 4025665655 is about 1590.7889568462.

The spelling of 4025665655 in words is "four billion, twenty-five million, six hundred sixty-five thousand, six hundred fifty-five".