544625685 has 24 divisors (see below), whose sum is σ = 999549720. Its totient is φ = 273380352.

The previous prime is 544625677. The next prime is 544625689. The reversal of 544625685 is 586526445.

544625685 is a `hidden beast` number, since 544 + 6 + 25 + 6 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 48316401 + 496309284 = 6951^2 + 22278^2 .

It is not a de Polignac number, because 544625685 - 2³ = 544625677 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 544625685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544625689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355200 + ... + 356729.

It is an arithmetic number, because the mean of its divisors is an integer number (41647905).

Almost surely, 2^544625685 is an apocalyptic number.

It is an amenable number.

544625685 is a deficient number, since it is larger than the sum of its proper divisors (454924035).

544625685 is a wasteful number, since it uses less digits than its factorization.

544625685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711957 (or 711954 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 544625685 is about 23337.2167363634. The cubic root of 544625685 is about 816.6438698806.

The spelling of 544625685 in words is "five hundred forty-four million, six hundred twenty-five thousand, six hundred eighty-five".