53947231236 has 36 divisors (see below), whose sum is σ = 136603002172. Its totient is φ = 17951238144.

The previous prime is 53947231229. The next prime is 53947231313. The reversal of 53947231236 is 63213274935.

53947231236 is a `hidden beast` number, since 5 + 394 + 7 + 23 + 1 + 236 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53319428100 + 627803136 = 230910^2 + 25056^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 53947231191 and 53947231200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277785 + ... + 1319328.

Almost surely, 2^53947231236 is an apocalyptic number.

It is an amenable number.

53947231236 is an abundant number, since it is smaller than the sum of its proper divisors (82655770936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53947231236 is a wasteful number, since it uses less digits than its factorization.

53947231236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597700 (or 2597695 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The spelling of 53947231236 in words is "fifty-three billion, nine hundred forty-seven million, two hundred thirty-one thousand, two hundred thirty-six".