4247123331025 has 9 divisors (see below), whose sum is σ = 5266445707803. Its totient is φ = 3397690421400.

The previous prime is 4247123330993. The next prime is 4247123331047. The reversal of 4247123331025 is 5201333217424.

The square root of 4247123331025 is 2060855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1528964399169 + 2718158931856 = 1236513^2 + 1648684^2 .

It is not a de Polignac number, because 4247123331025 - 2⁵ = 4247123330993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10098190 + ... + 10510360.

Almost surely, 2^{4247123331025} is an apocalyptic number.

4247123331025 is the 2060855-th square number.

4247123331025 is the 1030428-th centered octagonal number.

It is an amenable number.

4247123331025 is a deficient number, since it is larger than the sum of its proper divisors (1019322376778).

4247123331025 is an frugal number, since it uses more digits than its factorization.

4247123331025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824352 (or 412176 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 4247123331025 its reverse (5201333217424), we get a palindrome (9448456548449).

The spelling of 4247123331025 in words is "four trillion, two hundred forty-seven billion, one hundred twenty-three million, three hundred thirty-one thousand, twenty-five".