2225400025 has 12 divisors (see below), whose sum is σ = 2770953724. Its totient is φ = 1772928000.

The previous prime is 2225399993. The next prime is 2225400049. The reversal of 2225400025 is 5200045222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 289136016 + 1936264009 = 17004^2 + 44003^2 .

It is not a de Polignac number, because 2225400025 - 2⁵ = 2225399993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2225399969 and 2225400005.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178656 + ... + 190705.

Almost surely, 2^2225400025 is an apocalyptic number.

2225400025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2225400025 is a deficient number, since it is larger than the sum of its proper divisors (545553699).

2225400025 is a wasteful number, since it uses less digits than its factorization.

2225400025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369612 (or 369607 counting only the distinct ones).

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

The square root of 2225400025 is about 47174.1457262344. The cubic root of 2225400025 is about 1305.5776179831.

Adding to 2225400025 its reverse (5200045222), we get a palindrome (7425445247).

The spelling of 2225400025 in words is "two billion, two hundred twenty-five million, four hundred thousand, twenty-five".