71553323 has 16 divisors (see below), whose sum is σ = 78109920. Its totient is φ = 65280000.

The previous prime is 71553283. The next prime is 71553329. The reversal of 71553323 is 32335517.

It is a de Polignac number, because none of the positive numbers 2^k-71553323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71553329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174743 + ... + 175151.

It is an arithmetic number, because the mean of its divisors is an integer number (4881870).

Almost surely, 2^71553323 is an apocalyptic number.

71553323 is a deficient number, since it is larger than the sum of its proper divisors (6556597).

71553323 is a wasteful number, since it uses less digits than its factorization.

71553323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 9450, while the sum is 29.

The square root of 71553323 is about 8458.9197300837. The cubic root of 71553323 is about 415.1546779104.

The spelling of 71553323 in words is "seventy-one million, five hundred fifty-three thousand, three hundred twenty-three".