53286240 has 96 divisors (see below), whose sum is σ = 191842560. Its totient is φ = 12178944.

The previous prime is 53286229. The next prime is 53286269. The reversal of 53286240 is 4268235.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53286198 and 53286207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4570 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (1998360).

Almost surely, 2^53286240 is an apocalyptic number.

It is an amenable number.

53286240 is an abundant number, since it is smaller than the sum of its proper divisors (138556320).

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

53286240 is a wasteful number, since it uses less digits than its factorization.

53286240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884 (or 15876 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 53286240 is about 7299.7424612105. The cubic root of 53286240 is about 376.3035876184.

The spelling of 53286240 in words is "fifty-three million, two hundred eighty-six thousand, two hundred forty".