71233552 has 20 divisors (see below), whose sum is σ = 148631980. Its totient is φ = 32876928.

The previous prime is 71233511. The next prime is 71233577. The reversal of 71233552 is 25533217.

It can be written as a sum of positive squares in 2 ways, for example, as 14622976 + 56610576 = 3824^2 + 7524^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71233552.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 171027 + ... + 171442.

It is an arithmetic number, because the mean of its divisors is an integer number (7431599).

Almost surely, 2^71233552 is an apocalyptic number.

It is an amenable number.

71233552 is an abundant number, since it is smaller than the sum of its proper divisors (77398428).

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

71233552 is a wasteful number, since it uses less digits than its factorization.

71233552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342490 (or 342484 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 71233552 is about 8439.9971563976. The cubic root of 71233552 is about 414.5353138113.

Adding to 71233552 its reverse (25533217), we get a palindrome (96766769).

The spelling of 71233552 in words is "seventy-one million, two hundred thirty-three thousand, five hundred fifty-two".