2507485669 has 12 divisors (see below), whose sum is σ = 2868562564. Its totient is φ = 2178445824.

The previous prime is 2507485661. The next prime is 2507485679. The reversal of 2507485669 is 9665847052.

It can be written as a sum of positive squares in 6 ways, for example, as 8485569 + 2499000100 = 2913^2 + 49990^2 .

It is not a de Polignac number, because 2507485669 - 2³ = 2507485661 is a prime.

It is a super-2 number, since 2×2507485669² = 12574968760480755122, 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 (2507485661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329952 + ... + 337465.

Almost surely, 2^2507485669 is an apocalyptic number.

It is an amenable number.

2507485669 is a deficient number, since it is larger than the sum of its proper divisors (361076895).

2507485669 is a wasteful number, since it uses less digits than its factorization.

2507485669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667464 (or 667447 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 2507485669 is about 50074.8007384952. The cubic root of 2507485669 is about 1358.5620739687.

The spelling of 2507485669 in words is "two billion, five hundred seven million, four hundred eighty-five thousand, six hundred sixty-nine".