53661259185 has 32 divisors (see below), whose sum is σ = 86929210368. Its totient is φ = 28262566080.

The previous prime is 53661259147. The next prime is 53661259229. The reversal of 53661259185 is 58195216635.

It is not a de Polignac number, because 53661259185 - 2¹⁵ = 53661226417 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3467074 + ... + 3482516.

It is an arithmetic number, because the mean of its divisors is an integer number (2716537824).

Almost surely, 2^53661259185 is an apocalyptic number.

It is an amenable number.

53661259185 is a deficient number, since it is larger than the sum of its proper divisors (33267951183).

53661259185 is a wasteful number, since it uses less digits than its factorization.

53661259185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18325.

The product of its digits is 1944000, while the sum is 51.

The spelling of 53661259185 in words is "fifty-three billion, six hundred sixty-one million, two hundred fifty-nine thousand, one hundred eighty-five".