71325553 has 8 divisors (see below), whose sum is σ = 80152128. Its totient is φ = 62976144.

The previous prime is 71325517. The next prime is 71325559. The reversal of 71325553 is 35552317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71325553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71325559) 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, 118975 + ... + 119572.

It is an arithmetic number, because the mean of its divisors is an integer number (10019016).

Almost surely, 2^71325553 is an apocalyptic number.

It is an amenable number.

71325553 is a deficient number, since it is larger than the sum of its proper divisors (8826575).

71325553 is a wasteful number, since it uses less digits than its factorization.

71325553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238583.

The product of its digits is 15750, while the sum is 31.

The square root of 71325553 is about 8445.4456957582. The cubic root of 71325553 is about 414.7137000508.

The spelling of 71325553 in words is "seventy-one million, three hundred twenty-five thousand, five hundred fifty-three".