71057054 has 4 divisors (see below), whose sum is σ = 106585584. Its totient is φ = 35528526.

The previous prime is 71057033. The next prime is 71057069. The reversal of 71057054 is 45075017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45075017 = 13 ⋅3467309.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17764262 + ... + 17764265.

It is an arithmetic number, because the mean of its divisors is an integer number (26646396).

Almost surely, 2^71057054 is an apocalyptic number.

71057054 is a deficient number, since it is larger than the sum of its proper divisors (35528530).

71057054 is a wasteful number, since it uses less digits than its factorization.

71057054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528529.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 71057054 is about 8429.5346253515. The cubic root of 71057054 is about 414.1926608401.

The spelling of 71057054 in words is "seventy-one million, fifty-seven thousand, fifty-four".