52609905 has 20 divisors (see below), whose sum is σ = 94308852. Its totient is φ = 28058400.

The previous prime is 52609897. The next prime is 52609919. The reversal of 52609905 is 50990625.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 22667121 = 5472^2 + 4761^2 .

It is not a de Polignac number, because 52609905 - 2³ = 52609897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52609905.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64546 + ... + 65355.

Almost surely, 2^52609905 is an apocalyptic number.

It is an amenable number.

52609905 is a deficient number, since it is larger than the sum of its proper divisors (41698947).

52609905 is a wasteful number, since it uses less digits than its factorization.

52609905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129918 (or 129909 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 52609905 is about 7253.2685735467. The cubic root of 52609905 is about 374.7047275655.

The spelling of 52609905 in words is "fifty-two million, six hundred nine thousand, nine hundred five".