53531718 has 16 divisors (see below), whose sum is σ = 111718656. Its totient is φ = 17068040.

The previous prime is 53531713. The next prime is 53531719. The reversal of 53531718 is 81713535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531713) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193818 + ... + 194093.

It is an arithmetic number, because the mean of its divisors is an integer number (6982416).

Almost surely, 2^53531718 is an apocalyptic number.

53531718 is an abundant number, since it is smaller than the sum of its proper divisors (58186938).

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

53531718 is a wasteful number, since it uses less digits than its factorization.

53531718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387939.

The product of its digits is 12600, while the sum is 33.

The square root of 53531718 is about 7316.5372957431. The cubic root of 53531718 is about 376.8805518572.

The spelling of 53531718 in words is "fifty-three million, five hundred thirty-one thousand, seven hundred eighteen".