53031521858 has 32 divisors (see below), whose sum is σ = 93618079104. Its totient is φ = 22057805952.

The previous prime is 53031521857. The next prime is 53031521899. The reversal of 53031521858 is 85812513035.

It is not an unprimeable number, because it can be changed into a prime (53031521857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186035 + ... + 375062.

It is an arithmetic number, because the mean of its divisors is an integer number (2925564972).

Almost surely, 2^53031521858 is an apocalyptic number.

53031521858 is a deficient number, since it is larger than the sum of its proper divisors (40586557246).

53031521858 is a wasteful number, since it uses less digits than its factorization.

53031521858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561306.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 53031521858 in words is "fifty-three billion, thirty-one million, five hundred twenty-one thousand, eight hundred fifty-eight".