2553400225 has 6 divisors (see below), whose sum is σ = 3166216310. Its totient is φ = 2042720160.

The previous prime is 2553400147. The next prime is 2553400231. The reversal of 2553400225 is 5220043552.

It can be written as a sum of positive squares in 3 ways, for example, as 8803089 + 2544597136 = 2967^2 + 50444^2 .

It is not a de Polignac number, because 2553400225 - 2⁹ = 2553399713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2553400193 and 2553400202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51067980 + ... + 51068029.

Almost surely, 2^2553400225 is an apocalyptic number.

2553400225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2553400225 is a deficient number, since it is larger than the sum of its proper divisors (612816085).

2553400225 is a wasteful number, since it uses less digits than its factorization.

2553400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102136019 (or 102136014 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2553400225 is about 50531.1807204225. The cubic root of 2553400225 is about 1366.8041772866.

Adding to 2553400225 its reverse (5220043552), we get a palindrome (7773443777).

The spelling of 2553400225 in words is "two billion, five hundred fifty-three million, four hundred thousand, two hundred twenty-five".