2256370477 has 2 divisors, whose sum is σ = 2256370478. Its totient is φ = 2256370476.

The previous prime is 2256370471. The next prime is 2256370481. The reversal of 2256370477 is 7740736522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2244769641 + 11600836 = 47379^2 + 3406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2256370477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256370471) 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 as a sum of consecutive naturals, namely, 1128185238 + 1128185239.

It is an arithmetic number, because the mean of its divisors is an integer number (1128185239).

Almost surely, 2^2256370477 is an apocalyptic number.

It is an amenable number.

2256370477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256370477 is an equidigital number, since it uses as much as digits as its factorization.

2256370477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 43.

The square root of 2256370477 is about 47501.2681620186. The cubic root of 2256370477 is about 1311.6062260561.

The spelling of 2256370477 in words is "two billion, two hundred fifty-six million, three hundred seventy thousand, four hundred seventy-seven".