2555700400 has 120 divisors (see below), whose sum is σ = 6929578800. Its totient is φ = 897254400.

The previous prime is 2555700397. The next prime is 2555700409. The reversal of 2555700400 is 40075552.

It is not an unprimeable number, because it can be changed into a prime (2555700409) 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 23 ways as a sum of consecutive naturals, for example, 117586 + ... + 137614.

It is an arithmetic number, because the mean of its divisors is an integer number (57746490).

Almost surely, 2^2555700400 is an apocalyptic number.

2555700400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555700400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3464789400).

2555700400 is an abundant number, since it is smaller than the sum of its proper divisors (4373878400).

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

2555700400 is a wasteful number, since it uses less digits than its factorization.

2555700400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20087 (or 20076 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 2555700400 is about 50553.9355540199. The cubic root of 2555700400 is about 1367.2144727043.

Adding to 2555700400 its reverse (40075552), we get a palindrome (2595775952).

The spelling of 2555700400 in words is "two billion, five hundred fifty-five million, seven hundred thousand, four hundred".