655074281 has 2 divisors, whose sum is σ = 655074282. Its totient is φ = 655074280.

The previous prime is 655074197. The next prime is 655074317. The reversal of 655074281 is 182470556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654336400 + 737881 = 25580^2 + 859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655074281 is a prime.

It is a super-2 number, since 2×655074281² = 858244627255333922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (655071281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327537140 + 327537141.

It is an arithmetic number, because the mean of its divisors is an integer number (327537141).

Almost surely, 2^655074281 is an apocalyptic number.

It is an amenable number.

655074281 is a deficient number, since it is larger than the sum of its proper divisors (1).

655074281 is an equidigital number, since it uses as much as digits as its factorization.

655074281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 655074281 is about 25594.4189424179. The cubic root of 655074281 is about 868.4873883810.

The spelling of 655074281 in words is "six hundred fifty-five million, seventy-four thousand, two hundred eighty-one".