6651500025 has 12 divisors (see below), whose sum is σ = 10997146832. Its totient is φ = 3547466640.

The previous prime is 6651500017. The next prime is 6651500041. The reversal of 6651500025 is 5200051566.

It is not a de Polignac number, because 6651500025 - 2³ = 6651500017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6651499965 and 6651500001.

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, 44343259 + ... + 44343408.

Almost surely, 2^6651500025 is an apocalyptic number.

It is an amenable number.

6651500025 is a deficient number, since it is larger than the sum of its proper divisors (4345646807).

6651500025 is a wasteful number, since it uses less digits than its factorization.

6651500025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88686680 (or 88686675 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 6651500025 is about 81556.7288762859. The cubic root of 6651500025 is about 1880.6437384489.

The spelling of 6651500025 in words is "six billion, six hundred fifty-one million, five hundred thousand, twenty-five".