256060490955 has 32 divisors (see below), whose sum is σ = 431328464640. Its totient is φ = 129357325440.

The previous prime is 256060490953. The next prime is 256060490969. The reversal of 256060490955 is 559094060652.

It is a happy number.

It is not a de Polignac number, because 256060490955 - 2¹ = 256060490953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256060490898 and 256060490907.

It is not an unprimeable number, because it can be changed into a prime (256060490953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1807324 + ... + 1943846.

It is an arithmetic number, because the mean of its divisors is an integer number (13479014520).

Almost surely, 2^256060490955 is an apocalyptic number.

256060490955 is a deficient number, since it is larger than the sum of its proper divisors (175267973685).

256060490955 is a wasteful number, since it uses less digits than its factorization.

256060490955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143131.

The product of its (nonzero) digits is 2916000, while the sum is 51.

The spelling of 256060490955 in words is "two hundred fifty-six billion, sixty million, four hundred ninety thousand, nine hundred fifty-five".