6651532525 has 12 divisors (see below), whose sum is σ = 8997709824. Its totient is φ = 4837478000.

The previous prime is 6651532499. The next prime is 6651532549. The reversal of 6651532525 is 5252351566.

It is a happy number.

It is not a de Polignac number, because 6651532525 - 2¹¹ = 6651530477 is a prime.

It is a super-2 number, since 2×6651532525² = 88485769862265751250, which contains 22 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, 12093421 + ... + 12093970.

It is an arithmetic number, because the mean of its divisors is an integer number (749809152).

Almost surely, 2^6651532525 is an apocalyptic number.

It is an amenable number.

6651532525 is a deficient number, since it is larger than the sum of its proper divisors (2346177299).

6651532525 is a wasteful number, since it uses less digits than its factorization.

6651532525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24187412 (or 24187407 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 6651532525 is about 81556.9281238571. The cubic root of 6651532525 is about 1880.6468014584.

The spelling of 6651532525 in words is "six billion, six hundred fifty-one million, five hundred thirty-two thousand, five hundred twenty-five".