715523 has 2 divisors, whose sum is σ = 715524. Its totient is φ = 715522.

The previous prime is 715499. The next prime is 715537. The reversal of 715523 is 325517.

715523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (325517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 715523 - 2¹² = 711427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (715123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357761 + 357762.

It is an arithmetic number, because the mean of its divisors is an integer number (357762).

2⁷¹⁵⁵²³ is an apocalyptic number.

715523 is a deficient number, since it is larger than the sum of its proper divisors (1).

715523 is an equidigital number, since it uses as much as digits as its factorization.

715523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 23.

The square root of 715523 is about 845.8859261153. The cubic root of 715523 is about 89.4419377265.

The spelling of 715523 in words is "seven hundred fifteen thousand, five hundred twenty-three".