2556949814 has 16 divisors (see below), whose sum is σ = 4038316080. Its totient is φ = 1210878720.

The previous prime is 2556949741. The next prime is 2556949819. The reversal of 2556949814 is 4189496552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556949819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227102 + ... + 238094.

It is an arithmetic number, because the mean of its divisors is an integer number (252394755).

Almost surely, 2^2556949814 is an apocalyptic number.

2556949814 is a deficient number, since it is larger than the sum of its proper divisors (1481366266).

2556949814 is a wasteful number, since it uses less digits than its factorization.

2556949814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17135.

The product of its digits is 3110400, while the sum is 53.

The square root of 2556949814 is about 50566.2912818411. The cubic root of 2556949814 is about 1367.4372346801.

The spelling of 2556949814 in words is "two billion, five hundred fifty-six million, nine hundred forty-nine thousand, eight hundred fourteen".