452742521 has 16 divisors (see below), whose sum is σ = 597663360. Its totient is φ = 332033280.

The previous prime is 452742503. The next prime is 452742527. The reversal of 452742521 is 125247254.

It is a cyclic number.

It is not a de Polignac number, because 452742521 - 2⁶ = 452742457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (452742527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171626 + ... + 174243.

It is an arithmetic number, because the mean of its divisors is an integer number (37353960).

Almost surely, 2^452742521 is an apocalyptic number.

It is an amenable number.

452742521 is a deficient number, since it is larger than the sum of its proper divisors (144920839).

452742521 is a wasteful number, since it uses less digits than its factorization.

452742521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345904.

The product of its digits is 22400, while the sum is 32.

The square root of 452742521 is about 21277.7470846892. The cubic root of 452742521 is about 767.8630358556.

Adding to 452742521 its reverse (125247254), we get a palindrome (577989775).

The spelling of 452742521 in words is "four hundred fifty-two million, seven hundred forty-two thousand, five hundred twenty-one".