53015886 has 96 divisors (see below), whose sum is σ = 148262400. Its totient is φ = 13285440.

The previous prime is 53015867. The next prime is 53015899. The reversal of 53015886 is 68851035.

It is a self number, because there is not a number n which added to its sum of digits gives 53015886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39535 + ... + 40853.

It is an arithmetic number, because the mean of its divisors is an integer number (1544400).

Almost surely, 2^53015886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53015886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74131200).

53015886 is an abundant number, since it is smaller than the sum of its proper divisors (95246514).

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

53015886 is a wasteful number, since it uses less digits than its factorization.

53015886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 53015886 is about 7281.2008624951. The cubic root of 53015886 is about 375.6661014564. Note that the first 3 decimals are identical.

The spelling of 53015886 in words is "fifty-three million, fifteen thousand, eight hundred eighty-six".