42512593 has 4 divisors (see below), whose sum is σ = 43661620. Its totient is φ = 41363568.

The previous prime is 42512573. The next prime is 42512609. The reversal of 42512593 is 39521524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25472209 + 17040384 = 5047^2 + 4128^2 .

It is a cyclic number.

It is not a de Polignac number, because 42512593 - 2⁹ = 42512081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42512573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574458 + ... + 574531.

It is an arithmetic number, because the mean of its divisors is an integer number (10915405).

Almost surely, 2^42512593 is an apocalyptic number.

It is an amenable number.

42512593 is a deficient number, since it is larger than the sum of its proper divisors (1149027).

42512593 is a wasteful number, since it uses less digits than its factorization.

42512593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149026.

The product of its digits is 10800, while the sum is 31.

The square root of 42512593 is about 6520.1681726778. The cubic root of 42512593 is about 349.0110668817.

The spelling of 42512593 in words is "forty-two million, five hundred twelve thousand, five hundred ninety-three".