4245452545 has 4 divisors (see below), whose sum is σ = 5094543060. Its totient is φ = 3396362032.

The previous prime is 4245452537. The next prime is 4245452591. The reversal of 4245452545 is 5452545424.

4245452545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1225840144 + 3019612401 = 35012^2 + 54951^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245452545 - 2³ = 4245452537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4245452498 and 4245452507.

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, 424545250 + ... + 424545259.

It is an arithmetic number, because the mean of its divisors is an integer number (1273635765).

Almost surely, 2^4245452545 is an apocalyptic number.

It is an amenable number.

4245452545 is a deficient number, since it is larger than the sum of its proper divisors (849090515).

4245452545 is an equidigital number, since it uses as much as digits as its factorization.

4245452545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849090514.

The product of its digits is 640000, while the sum is 40.

The square root of 4245452545 is about 65157.1373296894. The cubic root of 4245452545 is about 1619.2279694087.

Adding to 4245452545 its reverse (5452545424), we get a palindrome (9697997969).

The spelling of 4245452545 in words is "four billion, two hundred forty-five million, four hundred fifty-two thousand, five hundred forty-five".