71616054 has 32 divisors (see below), whose sum is σ = 151159680. Its totient is φ = 22557312.

The previous prime is 71616049. The next prime is 71616071. The reversal of 71616054 is 45061617.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72814 + ... + 73790.

It is an arithmetic number, because the mean of its divisors is an integer number (4723740).

Almost surely, 2^71616054 is an apocalyptic number.

71616054 is an abundant number, since it is smaller than the sum of its proper divisors (79543626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71616054 is a wasteful number, since it uses less digits than its factorization.

71616054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 71616054 is about 8462.6268971283. The cubic root of 71616054 is about 415.2759648986.

The spelling of 71616054 in words is "seventy-one million, six hundred sixteen thousand, fifty-four".