2555333556 has 12 divisors (see below), whose sum is σ = 5962444992. Its totient is φ = 851777848.

The previous prime is 2555333551. The next prime is 2555333581. The reversal of 2555333556 is 6553335552.

It is a happy number.

2555333556 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555333551) 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, 106472220 + ... + 106472243.

It is an arithmetic number, because the mean of its divisors is an integer number (496870416).

Almost surely, 2^2555333556 is an apocalyptic number.

It is an amenable number.

2555333556 is an abundant number, since it is smaller than the sum of its proper divisors (3407111436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555333556 is a wasteful number, since it uses less digits than its factorization.

2555333556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212944470 (or 212944468 counting only the distinct ones).

The product of its digits is 1012500, while the sum is 42.

The square root of 2555333556 is about 50550.3071800756. The cubic root of 2555333556 is about 1367.1490531393.

The spelling of 2555333556 in words is "two billion, five hundred fifty-five million, three hundred thirty-three thousand, five hundred fifty-six".