4245211525 has 12 divisors (see below), whose sum is σ = 5573713572. Its totient is φ = 3196394240.

The previous prime is 4245211513. The next prime is 4245211561. The reversal of 4245211525 is 5251125424.

It can be written as a sum of positive squares in 6 ways, for example, as 298116 + 4244913409 = 546^2 + 65153^2 .

It is not a de Polignac number, because 4245211525 - 2⁵ = 4245211493 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 11 ways as a sum of consecutive naturals, for example, 4993942 + ... + 4994791.

It is an arithmetic number, because the mean of its divisors is an integer number (464476131).

Almost surely, 2^4245211525 is an apocalyptic number.

It is an amenable number.

4245211525 is a deficient number, since it is larger than the sum of its proper divisors (1328502047).

4245211525 is a wasteful number, since it uses less digits than its factorization.

4245211525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9988760 (or 9988755 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 4245211525 is about 65155.2877746695. The cubic root of 4245211525 is about 1619.1973269187.

Adding to 4245211525 its reverse (5251125424), we get a palindrome (9496336949).

The spelling of 4245211525 in words is "four billion, two hundred forty-five million, two hundred eleven thousand, five hundred twenty-five".