53031786 has 16 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 17664128.

The previous prime is 53031779. The next prime is 53031787. The reversal of 53031786 is 68713035.

It is a happy number.

53031786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53031787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8995 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (6633900).

Almost surely, 2^53031786 is an apocalyptic number.

53031786 is an abundant number, since it is smaller than the sum of its proper divisors (53110614).

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

53031786 is a wasteful number, since it uses less digits than its factorization.

53031786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53031786 is about 7282.2926335049. The cubic root of 53031786 is about 375.7036530561.

The spelling of 53031786 in words is "fifty-three million, thirty-one thousand, seven hundred eighty-six".