2575643825 has 6 divisors (see below), whose sum is σ = 3193798374. Its totient is φ = 2060515040.

The previous prime is 2575643789. The next prime is 2575643827. The reversal of 2575643825 is 5283465752.

It can be written as a sum of positive squares in 3 ways, for example, as 8904256 + 2566739569 = 2984^2 + 50663^2 .

It is not a de Polignac number, because 2575643825 - 2¹⁸ = 2575381681 is a prime.

It is a super-2 number, since 2×2575643825² = 13267882226521261250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2575643825.

It is not an unprimeable number, because it can be changed into a prime (2575643827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51512852 + ... + 51512901.

It is an arithmetic number, because the mean of its divisors is an integer number (532299729).

Almost surely, 2^2575643825 is an apocalyptic number.

2575643825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2575643825 is a deficient number, since it is larger than the sum of its proper divisors (618154549).

2575643825 is a wasteful number, since it uses less digits than its factorization.

2575643825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103025763 (or 103025758 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 47.

The square root of 2575643825 is about 50750.8012252023. The cubic root of 2575643825 is about 1370.7616176507.

The spelling of 2575643825 in words is "two billion, five hundred seventy-five million, six hundred forty-three thousand, eight hundred twenty-five".