2251542225 has 12 divisors (see below), whose sum is σ = 3722549936. Its totient is φ = 1200822480.

The previous prime is 2251542217. The next prime is 2251542253. The reversal of 2251542225 is 5222451522.

2251542225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251542225 - 2³ = 2251542217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251542192 and 2251542201.

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, 15010207 + ... + 15010356.

Almost surely, 2^2251542225 is an apocalyptic number.

2251542225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251542225 is a deficient number, since it is larger than the sum of its proper divisors (1471007711).

2251542225 is a wasteful number, since it uses less digits than its factorization.

2251542225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30020576 (or 30020571 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 2251542225 is about 47450.4185966784. The cubic root of 2251542225 is about 1310.6700193113.

Adding to 2251542225 its reverse (5222451522), we get a palindrome (7473993747).

The spelling of 2251542225 in words is "two billion, two hundred fifty-one million, five hundred forty-two thousand, two hundred twenty-five".