53887135925 has 24 divisors (see below), whose sum is σ = 80857878336. Its totient is φ = 34777578240.

The previous prime is 53887135921. The next prime is 53887135961. The reversal of 53887135925 is 52953178835.

It is a happy number.

It is not a de Polignac number, because 53887135925 - 2² = 53887135921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53887135921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9053687 + ... + 9059636.

It is an arithmetic number, because the mean of its divisors is an integer number (3369078264).

Almost surely, 2^53887135925 is an apocalyptic number.

It is an amenable number.

53887135925 is a deficient number, since it is larger than the sum of its proper divisors (26970742411).

53887135925 is a wasteful number, since it uses less digits than its factorization.

53887135925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113357 (or 18113352 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 56.

The spelling of 53887135925 in words is "fifty-three billion, eight hundred eighty-seven million, one hundred thirty-five thousand, nine hundred twenty-five".