2025504400 has 30 divisors (see below), whose sum is σ = 4866275282. Its totient is φ = 810201600.

The previous prime is 2025504359. The next prime is 2025504409. The reversal of 2025504400 is 44055202.

It can be written as a sum of positive squares in 3 ways, for example, as 250398976 + 1775105424 = 15824^2 + 42132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025504409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2531481 + ... + 2532280.

Almost surely, 2^2025504400 is an apocalyptic number.

2025504400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2025504400 is an abundant number, since it is smaller than the sum of its proper divisors (2840770882).

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

2025504400 is a wasteful number, since it uses less digits than its factorization.

2025504400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063779 (or 5063768 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2025504400 is about 45005.6040954902. The cubic root of 2025504400 is about 1265.2540330436.

Adding to 2025504400 its reverse (44055202), we get a palindrome (2069559602).

The spelling of 2025504400 in words is "two billion, twenty-five million, five hundred four thousand, four hundred".