42357523 has 16 divisors (see below), whose sum is σ = 48686400. Its totient is φ = 36504576.

The previous prime is 42357521. The next prime is 42357533. The reversal of 42357523 is 32575324.

It is not a de Polignac number, because 42357523 - 2¹ = 42357521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42357521) by changing a digit.

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, 29578 + ... + 30976.

It is an arithmetic number, because the mean of its divisors is an integer number (3042900).

Almost surely, 2^42357523 is an apocalyptic number.

42357523 is a deficient number, since it is larger than the sum of its proper divisors (6328877).

42357523 is a wasteful number, since it uses less digits than its factorization.

42357523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its digits is 25200, while the sum is 31.

The square root of 42357523 is about 6508.2657444207. The cubic root of 42357523 is about 348.5861960333.

The spelling of 42357523 in words is "forty-two million, three hundred fifty-seven thousand, five hundred twenty-three".