2257147025 has 18 divisors (see below), whose sum is σ = 3255821190. Its totient is φ = 1547757120.

The previous prime is 2257147019. The next prime is 2257147027. The reversal of 2257147025 is 5207417522.

It can be written as a sum of positive squares in 3 ways, for example, as 23261329 + 2233885696 = 4823^2 + 47264^2 .

It is not a de Polignac number, because 2257147025 - 2⁸ = 2257146769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2257147027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 920060 + ... + 922509.

It is an arithmetic number, because the mean of its divisors is an integer number (180878955).

Almost surely, 2^2257147025 is an apocalyptic number.

2257147025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2257147025 is a deficient number, since it is larger than the sum of its proper divisors (998674165).

2257147025 is a wasteful number, since it uses less digits than its factorization.

2257147025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842593 (or 1842581 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 2257147025 is about 47509.4414300989. The cubic root of 2257147025 is about 1311.7566753994.

It can be divided in two parts, 22571 and 47025, that added together give a palindrome (69596).

The spelling of 2257147025 in words is "two billion, two hundred fifty-seven million, one hundred forty-seven thousand, twenty-five".