2555522400 has 72 divisors (see below), whose sum is σ = 8318233224. Its totient is φ = 681472000.

The previous prime is 2555522381. The next prime is 2555522407. The reversal of 2555522400 is 42255552.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555522407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530001 + ... + 534800.

It is an arithmetic number, because the mean of its divisors is an integer number (115531017).

Almost surely, 2^2555522400 is an apocalyptic number.

2555522400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555522400 is an abundant number, since it is smaller than the sum of its proper divisors (5762710824).

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

2555522400 is a wasteful number, since it uses less digits than its factorization.

2555522400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064824 (or 1064811 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 2555522400 is about 50552.1750273913. The cubic root of 2555522400 is about 1367.1827306130.

Adding to 2555522400 its reverse (42255552), we get a palindrome (2597777952).

The spelling of 2555522400 in words is "two billion, five hundred fifty-five million, five hundred twenty-two thousand, four hundred".