53165772 has 36 divisors (see below), whose sum is σ = 146609736. Its totient is φ = 16110720.

The previous prime is 53165771. The next prime is 53165813. The reversal of 53165772 is 27756135.

53165772 is a `hidden beast` number, since 531 + 6 + 57 + 72 = 666.

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 (36).

It is not an unprimeable number, because it can be changed into a prime (53165771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66733 + ... + 67524.

Almost surely, 2^53165772 is an apocalyptic number.

It is an amenable number.

53165772 is an abundant number, since it is smaller than the sum of its proper divisors (93443964).

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

53165772 is a wasteful number, since it uses less digits than its factorization.

53165772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134278 (or 134273 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 53165772 is about 7291.4862682446. The cubic root of 53165772 is about 376.0197948685.

The spelling of 53165772 in words is "fifty-three million, one hundred sixty-five thousand, seven hundred seventy-two".