2505646525 has 12 divisors (see below), whose sum is σ = 3149565652. Its totient is φ = 1977056640.

The previous prime is 2505646513. The next prime is 2505646537. The reversal of 2505646525 is 5256465052.

2505646525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2505646513) and next prime (2505646537).

It can be written as a sum of positive squares in 6 ways, for example, as 475152804 + 2030493721 = 21798^2 + 45061^2 .

It is not a de Polignac number, because 2505646525 - 2²⁷ = 2371428797 is a prime.

It is a super-3 number, since 3×2505646525³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684654 + ... + 688303.

Almost surely, 2^2505646525 is an apocalyptic number.

2505646525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2505646525 is a deficient number, since it is larger than the sum of its proper divisors (643919127).

2505646525 is a wasteful number, since it uses less digits than its factorization.

2505646525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373040 (or 1373035 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The square root of 2505646525 is about 50056.4334027106. The cubic root of 2505646525 is about 1358.2298417729.

The spelling of 2505646525 in words is "two billion, five hundred five million, six hundred forty-six thousand, five hundred twenty-five".