2556201372 has 12 divisors (see below), whose sum is σ = 5964469896. Its totient is φ = 852067120.

The previous prime is 2556201343. The next prime is 2556201383. The reversal of 2556201372 is 2731026552.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106508379 + ... + 106508402.

It is an arithmetic number, because the mean of its divisors is an integer number (497039158).

Almost surely, 2^2556201372 is an apocalyptic number.

It is an amenable number.

2556201372 is an abundant number, since it is smaller than the sum of its proper divisors (3408268524).

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

2556201372 is a wasteful number, since it uses less digits than its factorization.

2556201372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213016788 (or 213016786 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 2556201372 is about 50558.8901381350. The cubic root of 2556201372 is about 1367.3038013048.

The spelling of 2556201372 in words is "two billion, five hundred fifty-six million, two hundred one thousand, three hundred seventy-two".