2625923521 has 6 divisors (see below), whose sum is σ = 2843455830. Its totient is φ = 2423929248.

The previous prime is 2625923497. The next prime is 2625923533. The reversal of 2625923521 is 1253295262.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 337640625 + 2288282896 = 18375^2 + 47836^2 .

It is not a de Polignac number, because 2625923521 - 2⁹ = 2625923009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625923591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7768836 + ... + 7769173.

It is an arithmetic number, because the mean of its divisors is an integer number (473909305).

Almost surely, 2^2625923521 is an apocalyptic number.

It is an amenable number.

2625923521 is a deficient number, since it is larger than the sum of its proper divisors (217532309).

2625923521 is a wasteful number, since it uses less digits than its factorization.

2625923521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15538035 (or 15538022 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 2625923521 is about 51243.7656793487. The cubic root of 2625923521 is about 1379.6238422014.

The spelling of 2625923521 in words is "two billion, six hundred twenty-five million, nine hundred twenty-three thousand, five hundred twenty-one".