53705286 has 48 divisors (see below), whose sum is σ = 123105840. Its totient is φ = 16873920.

The previous prime is 53705279. The next prime is 53705287. The reversal of 53705286 is 68250735.

53705286 is a `hidden beast` number, since 5 + 370 + 5 + 286 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53705286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53705287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127356 + ... + 127776.

It is an arithmetic number, because the mean of its divisors is an integer number (2564705).

Almost surely, 2^53705286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53705286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61552920).

53705286 is an abundant number, since it is smaller than the sum of its proper divisors (69400554).

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

53705286 is a wasteful number, since it uses less digits than its factorization.

53705286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 818 counting only the distinct ones).

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

The square root of 53705286 is about 7328.3890453496. The cubic root of 53705286 is about 377.2874373112.

The spelling of 53705286 in words is "fifty-three million, seven hundred five thousand, two hundred eighty-six".