80011523 has 2 divisors, whose sum is σ = 80011524. Its totient is φ = 80011522.

The previous prime is 80011513. The next prime is 80011573. The reversal of 80011523 is 32511008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80011523 - 2¹⁰ = 80010499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80011495 and 80011504.

It is not a weakly prime, because it can be changed into another prime (80011513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40005761 + 40005762.

It is an arithmetic number, because the mean of its divisors is an integer number (40005762).

Almost surely, 2^80011523 is an apocalyptic number.

80011523 is a deficient number, since it is larger than the sum of its proper divisors (1).

80011523 is an equidigital number, since it uses as much as digits as its factorization.

80011523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 80011523 is about 8944.9160420878. The cubic root of 80011523 is about 430.9076249723.

The spelling of 80011523 in words is "eighty million, eleven thousand, five hundred twenty-three".