53181036 has 36 divisors (see below), whose sum is σ = 139411272. Its totient is φ = 17726688.

The previous prime is 53181013. The next prime is 53181047. The reversal of 53181036 is 63018135.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 26385 + ... + 28328.

Almost surely, 2^53181036 is an apocalyptic number.

It is an amenable number.

53181036 is an abundant number, since it is smaller than the sum of its proper divisors (86230236).

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

53181036 is a wasteful number, since it uses less digits than its factorization.

53181036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54732 (or 54718 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 53181036 is about 7292.5328933094. The cubic root of 53181036 is about 376.0557767716.

The spelling of 53181036 in words is "fifty-three million, one hundred eighty-one thousand, thirty-six".