71553452 has 6 divisors (see below), whose sum is σ = 125218548. Its totient is φ = 35776724.

The previous prime is 71553439. The next prime is 71553467. The reversal of 71553452 is 25435517.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8944178 + ... + 8944185.

It is an arithmetic number, because the mean of its divisors is an integer number (20869758).

Almost surely, 2^71553452 is an apocalyptic number.

It is an amenable number.

71553452 is a deficient number, since it is larger than the sum of its proper divisors (53665096).

71553452 is a wasteful number, since it uses less digits than its factorization.

71553452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17888367 (or 17888365 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 71553452 is about 8458.9273551674. The cubic root of 71553452 is about 415.1549273976.

Adding to 71553452 its reverse (25435517), we get a palindrome (96988969).

The spelling of 71553452 in words is "seventy-one million, five hundred fifty-three thousand, four hundred fifty-two".