2251542125 has 32 divisors (see below), whose sum is σ = 3232799232. Its totient is φ = 1533600000.

The previous prime is 2251542113. The next prime is 2251542127. The reversal of 2251542125 is 5212451522.

It is a happy number.

It is not a de Polignac number, because 2251542125 - 2⁶ = 2251542061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251542127) 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 31 ways as a sum of consecutive naturals, for example, 123605 + ... + 140645.

It is an arithmetic number, because the mean of its divisors is an integer number (101024976).

Almost surely, 2^2251542125 is an apocalyptic number.

2251542125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251542125 is a deficient number, since it is larger than the sum of its proper divisors (981257107).

2251542125 is a wasteful number, since it uses less digits than its factorization.

2251542125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17214 (or 17204 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 2251542125 is about 47450.4175429469. The cubic root of 2251542125 is about 1310.6699999073.

Adding to 2251542125 its reverse (5212451522), we get a palindrome (7463993647).

The spelling of 2251542125 in words is "two billion, two hundred fifty-one million, five hundred forty-two thousand, one hundred twenty-five".