2557553456 has 40 divisors (see below), whose sum is σ = 5006804544. Its totient is φ = 1265544000.

The previous prime is 2557553447. The next prime is 2557553459. The reversal of 2557553456 is 6543557552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557553456.

It is not an unprimeable number, because it can be changed into a prime (2557553459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652655 + ... + 656561.

Almost surely, 2^2557553456 is an apocalyptic number.

It is an amenable number.

2557553456 is a deficient number, since it is larger than the sum of its proper divisors (2449251088).

2557553456 is a wasteful number, since it uses less digits than its factorization.

2557553456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329 (or 4323 counting only the distinct ones).

The product of its digits is 3150000, while the sum is 47.

The square root of 2557553456 is about 50572.2597478104. The cubic root of 2557553456 is about 1367.5448339239.

The spelling of 2557553456 in words is "two billion, five hundred fifty-seven million, five hundred fifty-three thousand, four hundred fifty-six".