53609136 has 120 divisors (see below), whose sum is σ = 168274944. Its totient is φ = 14636160.

The previous prime is 53609117. The next prime is 53609167. The reversal of 53609136 is 63190635.

It is a junction number, because it is equal to n+sod(n) for n = 53609097 and 53609106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53601 + ... + 54591.

Almost surely, 2^53609136 is an apocalyptic number.

53609136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53609136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84137472).

53609136 is an abundant number, since it is smaller than the sum of its proper divisors (114665808).

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

53609136 is a wasteful number, since it uses less digits than its factorization.

53609136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 53609136 is about 7321.8260017567. The cubic root of 53609136 is about 377.0621469031.

The spelling of 53609136 in words is "fifty-three million, six hundred nine thousand, one hundred thirty-six".