42296521 has 4 divisors (see below), whose sum is σ = 42832000. Its totient is φ = 41761044.

The previous prime is 42296519. The next prime is 42296537. The reversal of 42296521 is 12569224.

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 42296521 - 2¹ = 42296519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42296581) 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 3 ways as a sum of consecutive naturals, for example, 267621 + ... + 267778.

It is an arithmetic number, because the mean of its divisors is an integer number (10708000).

Almost surely, 2^42296521 is an apocalyptic number.

It is an amenable number.

42296521 is a deficient number, since it is larger than the sum of its proper divisors (535479).

42296521 is an equidigital number, since it uses as much as digits as its factorization.

42296521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535478.

The product of its digits is 8640, while the sum is 31.

The square root of 42296521 is about 6503.5775539314. The cubic root of 42296521 is about 348.4187746015.

The spelling of 42296521 in words is "forty-two million, two hundred ninety-six thousand, five hundred twenty-one".