53597609209 has 4 divisors (see below), whose sum is σ = 55445802660. Its totient is φ = 51749415760.

The previous prime is 53597609203. The next prime is 53597609249. The reversal of 53597609209 is 90290679535.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36920469609 + 16677139600 = 192147^2 + 129140^2 .

It is a cyclic number.

It is not a de Polignac number, because 53597609209 - 2³¹ = 51450125561 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 53597609209.

It is not an unprimeable number, because it can be changed into a prime (53597609203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924096682 + ... + 924096739.

It is an arithmetic number, because the mean of its divisors is an integer number (13861450665).

Almost surely, 2^53597609209 is an apocalyptic number.

It is an amenable number.

53597609209 is a deficient number, since it is larger than the sum of its proper divisors (1848193451).

53597609209 is a wasteful number, since it uses less digits than its factorization.

53597609209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848193450.

The product of its (nonzero) digits is 4592700, while the sum is 55.

The spelling of 53597609209 in words is "fifty-three billion, five hundred ninety-seven million, six hundred nine thousand, two hundred nine".