2625625469 has 4 divisors (see below), whose sum is σ = 2780074044. Its totient is φ = 2471176896.

The previous prime is 2625625441. The next prime is 2625625481. The reversal of 2625625469 is 9645265262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1839552100 + 786073369 = 42890^2 + 28037^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625625469 - 2⁸ = 2625625213 is a prime.

It is a super-2 number, since 2×2625625469² = 13787818206922939922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625621469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77224262 + ... + 77224295.

It is an arithmetic number, because the mean of its divisors is an integer number (695018511).

Almost surely, 2^2625625469 is an apocalyptic number.

It is an amenable number.

2625625469 is a deficient number, since it is larger than the sum of its proper divisors (154448575).

2625625469 is a wasteful number, since it uses less digits than its factorization.

2625625469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154448574.

The product of its digits is 1555200, while the sum is 47.

The square root of 2625625469 is about 51240.8574186654. The cubic root of 2625625469 is about 1379.5716427624.

The spelling of 2625625469 in words is "two billion, six hundred twenty-five million, six hundred twenty-five thousand, four hundred sixty-nine".