4245405245 has 8 divisors (see below), whose sum is σ = 5098205016. Its totient is φ = 3393845056.

The previous prime is 4245405221. The next prime is 4245405259. The reversal of 4245405245 is 5425045424.

It can be written as a sum of positive squares in 4 ways, for example, as 2798515801 + 1446889444 = 52901^2 + 38038^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4245405245 - 2⁶ = 4245405181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302342 + ... + 316071.

It is an arithmetic number, because the mean of its divisors is an integer number (637275627).

Almost surely, 2^4245405245 is an apocalyptic number.

It is an amenable number.

4245405245 is a deficient number, since it is larger than the sum of its proper divisors (852799771).

4245405245 is a wasteful number, since it uses less digits than its factorization.

4245405245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619791.

The product of its (nonzero) digits is 128000, while the sum is 35.

The square root of 4245405245 is about 65156.7743600004. The cubic root of 4245405245 is about 1619.2219559337.

The spelling of 4245405245 in words is "four billion, two hundred forty-five million, four hundred five thousand, two hundred forty-five".