450140525 has 6 divisors (see below), whose sum is σ = 558174282. Its totient is φ = 360112400.

The previous prime is 450140477. The next prime is 450140527. The reversal of 450140525 is 525041054.

It can be written as a sum of positive squares in 3 ways, for example, as 95609284 + 354531241 = 9778^2 + 18829^2 .

It is a de Polignac number, because none of the positive numbers 2^k-450140525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450140494 and 450140503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450140527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9002786 + ... + 9002835.

It is an arithmetic number, because the mean of its divisors is an integer number (93029047).

Almost surely, 2^450140525 is an apocalyptic number.

It is an amenable number.

450140525 is a deficient number, since it is larger than the sum of its proper divisors (108033757).

450140525 is a wasteful number, since it uses less digits than its factorization.

450140525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18005631 (or 18005626 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 450140525 is about 21216.5153830689. The cubic root of 450140525 is about 766.3891912274.

Adding to 450140525 its reverse (525041054), we get a palindrome (975181579).

The spelling of 450140525 in words is "four hundred fifty million, one hundred forty thousand, five hundred twenty-five".