605400705625 has 15 divisors (see below), whose sum is σ = 756533029593. Its totient is φ = 484305003000.

The previous prime is 605400705617. The next prime is 605400705649. The reversal of 605400705625 is 526507004506.

The square root of 605400705625 is 778075.

It is a perfect power (a square), and thus also a powerful number.

605400705625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47463415321 + 557937290304 = 217861^2 + 746952^2 .

It is not a de Polignac number, because 605400705625 - 2³ = 605400705617 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 19436314 + ... + 19467436.

Almost surely, 2^605400705625 is an apocalyptic number.

605400705625 is the 778075-th square number.

605400705625 is the 389038-th centered octagonal number.

It is an amenable number.

605400705625 is a deficient number, since it is larger than the sum of its proper divisors (151132323968).

605400705625 is an frugal number, since it uses more digits than its factorization.

605400705625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62266 (or 31128 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

It can be divided in two parts, 605400 and 705625, that added together give a square (1311025 = 1145²).

The spelling of 605400705625 in words is "six hundred five billion, four hundred million, seven hundred five thousand, six hundred twenty-five".