4425131231505 has 16 divisors (see below), whose sum is σ = 7866899967360. Its totient is φ = 2360069990064.

The previous prime is 4425131231483. The next prime is 4425131231527. The reversal of 4425131231505 is 5051321315244.

4425131231505 is a `hidden beast` number, since 4 + 4 + 2 + 513 + 123 + 15 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (4425131231483) and next prime (4425131231527).

It is not a de Polignac number, because 4425131231505 - 2⁸ = 4425131231249 is a prime.

It is a super-3 number, since 3×4425131231505³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4425131231505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16389374797 + ... + 16389375066.

It is an arithmetic number, because the mean of its divisors is an integer number (491681247960).

Almost surely, 2^{4425131231505} is an apocalyptic number.

4425131231505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4425131231505 is a deficient number, since it is larger than the sum of its proper divisors (3441768735855).

4425131231505 is a wasteful number, since it uses less digits than its factorization.

4425131231505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32778749877 (or 32778749871 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 4425131231505 its reverse (5051321315244), we get a palindrome (9476452546749).

The spelling of 4425131231505 in words is "four trillion, four hundred twenty-five billion, one hundred thirty-one million, two hundred thirty-one thousand, five hundred five".