80042523 has 16 divisors (see below), whose sum is σ = 120441600. Its totient is φ = 46837280.

The previous prime is 80042519. The next prime is 80042531. The reversal of 80042523 is 32524008.

It is a cyclic number.

It is not a de Polignac number, because 80042523 - 2² = 80042519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80042493 and 80042502.

It is not an unprimeable number, because it can be changed into a prime (80042513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40863 + ... + 42776.

It is an arithmetic number, because the mean of its divisors is an integer number (7527600).

Almost surely, 2^80042523 is an apocalyptic number.

80042523 is a deficient number, since it is larger than the sum of its proper divisors (40399077).

80042523 is a wasteful number, since it uses less digits than its factorization.

80042523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83682.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 80042523 is about 8946.6487021678. The cubic root of 80042523 is about 430.9632686724.

The spelling of 80042523 in words is "eighty million, forty-two thousand, five hundred twenty-three".