450425521 has 16 divisors (see below), whose sum is σ = 555408000. Its totient is φ = 355713408.

The previous prime is 450425519. The next prime is 450425527. The reversal of 450425521 is 125524054.

It is a cyclic number.

It is not a de Polignac number, because 450425521 - 2¹ = 450425519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450425521.

It is not an unprimeable number, because it can be changed into a prime (450425527) 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, 47430 + ... + 56128.

It is an arithmetic number, because the mean of its divisors is an integer number (34713000).

Almost surely, 2^450425521 is an apocalyptic number.

It is an amenable number.

450425521 is a deficient number, since it is larger than the sum of its proper divisors (104982479).

450425521 is a wasteful number, since it uses less digits than its factorization.

450425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 450425521 is about 21223.2306918622. The cubic root of 450425521 is about 766.5508976003.

Adding to 450425521 its reverse (125524054), we get a palindrome (575949575).

The spelling of 450425521 in words is "four hundred fifty million, four hundred twenty-five thousand, five hundred twenty-one".