53865072 has 30 divisors (see below), whose sum is σ = 150747792. Its totient is φ = 17954976.

The previous prime is 53865067. The next prime is 53865079. The reversal of 53865072 is 27056835.

53865072 is a `hidden beast` number, since 538 + 6 + 50 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53865079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186888 + ... + 187175.

Almost surely, 2^53865072 is an apocalyptic number.

It is an amenable number.

53865072 is an abundant number, since it is smaller than the sum of its proper divisors (96882720).

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

53865072 is a wasteful number, since it uses less digits than its factorization.

53865072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374077 (or 374068 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 53865072 is about 7339.2827987481. The cubic root of 53865072 is about 377.6612401272.

The spelling of 53865072 in words is "fifty-three million, eight hundred sixty-five thousand, seventy-two".