6610550625 has 60 divisors (see below), whose sum is σ = 13636534912. Its totient is φ = 3021948000.

The previous prime is 6610550593. The next prime is 6610550627. The reversal of 6610550625 is 5260550166.

It is a happy number.

It is not a de Polignac number, because 6610550625 - 2⁵ = 6610550593 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6610550625.

It is not an unprimeable number, because it can be changed into a prime (6610550627) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 44569 + ... + 123318.

Almost surely, 2^6610550625 is an apocalyptic number.

It is an amenable number.

6610550625 is an abundant number, since it is smaller than the sum of its proper divisors (7025984287).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6610550625 is a wasteful number, since it uses less digits than its factorization.

6610550625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167920 (or 167902 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 6610550625 is about 81305.2927243977. The cubic root of 6610550625 is about 1876.7764497225.

The spelling of 6610550625 in words is "six billion, six hundred ten million, five hundred fifty thousand, six hundred twenty-five".