9405555725 has 12 divisors (see below), whose sum is σ = 11776124256. Its totient is φ = 7451389680.

The previous prime is 9405555721. The next prime is 9405555737. The reversal of 9405555725 is 5275555049.

It is not a de Polignac number, because 9405555725 - 2² = 9405555721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9405555725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9405555721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1823747 + ... + 1828896.

It is an arithmetic number, because the mean of its divisors is an integer number (981343688).

Almost surely, 2^9405555725 is an apocalyptic number.

It is an amenable number.

9405555725 is a deficient number, since it is larger than the sum of its proper divisors (2370568531).

9405555725 is a wasteful number, since it uses less digits than its factorization.

9405555725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652756 (or 3652751 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 47.

The square root of 9405555725 is about 96982.2443800926. The cubic root of 9405555725 is about 2110.8699964215.

The spelling of 9405555725 in words is "nine billion, four hundred five million, five hundred fifty-five thousand, seven hundred twenty-five".