655241931 has 24 divisors (see below), whose sum is σ = 1018577664. Its totient is φ = 404386560.

The previous prime is 655241929. The next prime is 655241933. The reversal of 655241931 is 139142556.

655241931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (655241929) and next prime (655241933).

It is not a de Polignac number, because 655241931 - 2¹ = 655241929 is a prime.

It is a super-2 number, since 2×655241931² = 858683976281217522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655241933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25771 + ... + 44436.

It is an arithmetic number, because the mean of its divisors is an integer number (42440736).

Almost surely, 2^655241931 is an apocalyptic number.

655241931 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

655241931 is a deficient number, since it is larger than the sum of its proper divisors (363335733).

655241931 is a wasteful number, since it uses less digits than its factorization.

655241931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70291 (or 70288 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 655241931 is about 25597.6938609711. The cubic root of 655241931 is about 868.5614713237.

The spelling of 655241931 in words is "six hundred fifty-five million, two hundred forty-one thousand, nine hundred thirty-one".