2625081604 has 6 divisors (see below), whose sum is σ = 4593892814. Its totient is φ = 1312540800.

The previous prime is 2625081601. The next prime is 2625081619. The reversal of 2625081604 is 4061805262.

It can be written as a sum of positive squares in only one way, i.e., 1313917504 + 1311164100 = 36248^2 + 36210^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2625081604.

It is not an unprimeable number, because it can be changed into a prime (2625081601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328135197 + ... + 328135204.

Almost surely, 2^2625081604 is an apocalyptic number.

It is an amenable number.

2625081604 is a deficient number, since it is larger than the sum of its proper divisors (1968811210).

2625081604 is a wasteful number, since it uses less digits than its factorization.

2625081604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656270405 (or 656270403 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2625081604 is about 51235.5501971044. The cubic root of 2625081604 is about 1379.4763825979.

Adding to 2625081604 its reverse (4061805262), we get a palindrome (6686886866).

The spelling of 2625081604 in words is "two billion, six hundred twenty-five million, eighty-one thousand, six hundred four".