655278041 has 6 divisors (see below), whose sum is σ = 720264426. Its totient is φ = 595707200.

The previous prime is 655277993. The next prime is 655278047. The reversal of 655278041 is 140872556.

It can be written as a sum of positive squares in only one way, i.e., 331422025 + 323856016 = 18205^2 + 17996^2 .

It is not a de Polignac number, because 655278041 - 2⁶ = 655277977 is a prime.

It is a super-2 number, since 2×655278041² = 858778622033595362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655277986 and 655278004.

It is not an unprimeable number, because it can be changed into a prime (655278047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2707640 + ... + 2707881.

It is an arithmetic number, because the mean of its divisors is an integer number (120044071).

Almost surely, 2^655278041 is an apocalyptic number.

It is an amenable number.

655278041 is a deficient number, since it is larger than the sum of its proper divisors (64986385).

655278041 is a wasteful number, since it uses less digits than its factorization.

655278041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415543 (or 5415532 counting only the distinct ones).

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

The square root of 655278041 is about 25598.3991882305. The cubic root of 655278041 is about 868.5774263357.

The spelling of 655278041 in words is "six hundred fifty-five million, two hundred seventy-eight thousand, forty-one".