71322553 has 8 divisors (see below), whose sum is σ = 73146240. Its totient is φ = 69521760.

The previous prime is 71322541. The next prime is 71322583. The reversal of 71322553 is 35522317.

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

It is a cyclic number.

It is not a de Polignac number, because 71322553 - 2¹⁷ = 71191481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71322583) 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, 676 + ... + 11962.

It is an arithmetic number, because the mean of its divisors is an integer number (9143280).

Almost surely, 2^71322553 is an apocalyptic number.

It is an amenable number.

71322553 is a deficient number, since it is larger than the sum of its proper divisors (1823687).

71322553 is a wasteful number, since it uses less digits than its factorization.

71322553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447.

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

The square root of 71322553 is about 8445.2680833707. The cubic root of 71322553 is about 414.7078855916.

It can be divided in two parts, 71 and 322553, that added together give a square (322624 = 568²).

The spelling of 71322553 in words is "seventy-one million, three hundred twenty-two thousand, five hundred fifty-three".