655869895 has 16 divisors (see below), whose sum is σ = 795738240. Its totient is φ = 518918400.

The previous prime is 655869853. The next prime is 655869899. The reversal of 655869895 is 598968556.

It is not a de Polignac number, because 655869895 - 2¹⁷ = 655738823 is a prime.

It is a super-2 number, since 2×655869895² = 860330638334622050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655869899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495835 + ... + 497155.

It is an arithmetic number, because the mean of its divisors is an integer number (49733640).

Almost surely, 2^655869895 is an apocalyptic number.

655869895 is a deficient number, since it is larger than the sum of its proper divisors (139868345).

655869895 is a wasteful number, since it uses less digits than its factorization.

655869895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its digits is 23328000, while the sum is 61.

The square root of 655869895 is about 25609.9569503738. The cubic root of 655869895 is about 868.8388503919.

The spelling of 655869895 in words is "six hundred fifty-five million, eight hundred sixty-nine thousand, eight hundred ninety-five".