4245132505 has 4 divisors (see below), whose sum is σ = 5094159012. Its totient is φ = 3396106000.

The previous prime is 4245132469. The next prime is 4245132511. The reversal of 4245132505 is 5052315424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1279349824 + 2965782681 = 35768^2 + 54459^2 .

It is not a de Polignac number, because 4245132505 - 2²¹ = 4243035353 is a prime.

It is a super-2 number, since 2×4245132505² = 36042299970015150050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424513246 + ... + 424513255.

It is an arithmetic number, because the mean of its divisors is an integer number (1273539753).

Almost surely, 2^4245132505 is an apocalyptic number.

It is an amenable number.

4245132505 is a deficient number, since it is larger than the sum of its proper divisors (849026507).

4245132505 is an equidigital number, since it uses as much as digits as its factorization.

4245132505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849026506.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 4245132505 is about 65154.6813744032. The cubic root of 4245132505 is about 1619.1872803234.

Adding to 4245132505 its reverse (5052315424), we get a palindrome (9297447929).

The spelling of 4245132505 in words is "four billion, two hundred forty-five million, one hundred thirty-two thousand, five hundred five".