2255006561361 has 4 divisors (see below), whose sum is σ = 3006675415152. Its totient is φ = 1503337707572.

The previous prime is 2255006561341. The next prime is 2255006561363. The reversal of 2255006561361 is 1631656005522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2255006561361 - 2³⁵ = 2220646822993 is a prime.

It is a super-2 number, since 2×2255006561361² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2255006561363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375834426891 + ... + 375834426896.

It is an arithmetic number, because the mean of its divisors is an integer number (751668853788).

Almost surely, 2^{2255006561361} is an apocalyptic number.

It is an amenable number.

2255006561361 is a deficient number, since it is larger than the sum of its proper divisors (751668853791).

2255006561361 is an equidigital number, since it uses as much as digits as its factorization.

2255006561361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751668853790.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 2255006561361 in words is "two trillion, two hundred fifty-five billion, six million, five hundred sixty-one thousand, three hundred sixty-one".