52031808 has 70 divisors (see below), whose sum is σ = 154253946. Its totient is φ = 17342208.

The previous prime is 52031801. The next prime is 52031809. The reversal of 52031808 is 80813025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41062464 + 10969344 = 6408^2 + 3312^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031801) 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 9 ways as a sum of consecutive naturals, for example, 166 + ... + 10202.

Almost surely, 2^52031808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52031808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77126973).

52031808 is an abundant number, since it is smaller than the sum of its proper divisors (102222138).

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

52031808 is a wasteful number, since it uses less digits than its factorization.

52031808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061 (or 10042 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 52031808 is about 7213.3077017413. The cubic root of 52031808 is about 373.3272051148.

The spelling of 52031808 in words is "fifty-two million, thirty-one thousand, eight hundred eight".