655256061 has 12 divisors (see below), whose sum is σ = 981536192. Its totient is φ = 436837212.

The previous prime is 655256057. The next prime is 655256071. The reversal of 655256061 is 160652556.

It is a happy number.

It is not a de Polignac number, because 655256061 - 2² = 655256057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655256071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348021 + ... + 1348506.

Almost surely, 2^655256061 is an apocalyptic number.

It is an amenable number.

655256061 is a deficient number, since it is larger than the sum of its proper divisors (326280131).

655256061 is an equidigital number, since it uses as much as digits as its factorization.

655256061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696542 (or 2696530 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 655256061 is about 25597.9698609089. The cubic root of 655256061 is about 868.5677146591.

The spelling of 655256061 in words is "six hundred fifty-five million, two hundred fifty-six thousand, sixty-one".