538520625 has 30 divisors (see below), whose sum is σ = 972027914. Its totient is φ = 287208000.

The previous prime is 538520617. The next prime is 538520639. The reversal of 538520625 is 526025835.

It is a happy number.

538520625 is a `hidden beast` number, since 5 + 3 + 8 + 5 + 20 + 625 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 58384881 + 480135744 = 7641^2 + 21912^2 .

It is not a de Polignac number, because 538520625 - 2³ = 538520617 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 538520625.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 42244 + ... + 53493.

Almost surely, 2^538520625 is an apocalyptic number.

It is an amenable number.

538520625 is a deficient number, since it is larger than the sum of its proper divisors (433507289).

538520625 is an equidigital number, since it uses as much as digits as its factorization.

538520625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95763 (or 95745 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 538520625 is about 23206.0471644785. The cubic root of 538520625 is about 813.5809675313.

The spelling of 538520625 in words is "five hundred thirty-eight million, five hundred twenty thousand, six hundred twenty-five".