42591453 has 4 divisors (see below), whose sum is σ = 56788608. Its totient is φ = 28394300.

The previous prime is 42591391. The next prime is 42591467. The reversal of 42591453 is 35419524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42591453 - 2²⁴ = 25814237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42591253) 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, 7098573 + ... + 7098578.

It is an arithmetic number, because the mean of its divisors is an integer number (14197152).

Almost surely, 2^42591453 is an apocalyptic number.

It is an amenable number.

42591453 is a deficient number, since it is larger than the sum of its proper divisors (14197155).

42591453 is a wasteful number, since it uses less digits than its factorization.

42591453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197154.

The product of its digits is 21600, while the sum is 33.

The square root of 42591453 is about 6526.2127608591. The cubic root of 42591453 is about 349.2267364053.

The spelling of 42591453 in words is "forty-two million, five hundred ninety-one thousand, four hundred fifty-three".