71553116 has 12 divisors (see below), whose sum is σ = 128602488. Its totient is φ = 34809552.

The previous prime is 71553113. The next prime is 71553149. The reversal of 71553116 is 61135517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71553113) 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 3 ways as a sum of consecutive naturals, for example, 241586 + ... + 241881.

It is an arithmetic number, because the mean of its divisors is an integer number (10716874).

Almost surely, 2^71553116 is an apocalyptic number.

It is an amenable number.

71553116 is a deficient number, since it is larger than the sum of its proper divisors (57049372).

71553116 is a wasteful number, since it uses less digits than its factorization.

71553116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483508 (or 483506 counting only the distinct ones).

The product of its digits is 3150, while the sum is 29.

The square root of 71553116 is about 8458.9074944700. The cubic root of 71553116 is about 415.1542775698.

The spelling of 71553116 in words is "seventy-one million, five hundred fifty-three thousand, one hundred sixteen".