2556132402 has 16 divisors (see below), whose sum is σ = 5198914080. Its totient is φ = 837602592.

The previous prime is 2556132401. The next prime is 2556132407. The reversal of 2556132402 is 2042316552.

2556132402 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 self number, because there is not a number n which added to its sum of digits gives 2556132402.

It is not an unprimeable number, because it can be changed into a prime (2556132401) 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, 3610003 + ... + 3610710.

It is an arithmetic number, because the mean of its divisors is an integer number (324932130).

Almost surely, 2^2556132402 is an apocalyptic number.

2556132402 is an abundant number, since it is smaller than the sum of its proper divisors (2642781678).

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

2556132402 is a wasteful number, since it uses less digits than its factorization.

2556132402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220777.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2556132402 is about 50558.2080576438. The cubic root of 2556132402 is about 1367.2915039179.

Adding to 2556132402 its reverse (2042316552), we get a palindrome (4598448954).

The spelling of 2556132402 in words is "two billion, five hundred fifty-six million, one hundred thirty-two thousand, four hundred two".