53440434125 has 16 divisors (see below), whose sum is σ = 71823945648. Its totient is φ = 39463704000.

The previous prime is 53440434119. The next prime is 53440434149. The reversal of 53440434125 is 52143404435.

It can be written as a sum of positive squares in 8 ways, for example, as 38559605956 + 14880828169 = 196366^2 + 121987^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53440434125 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16441586 + ... + 16444835.

It is an arithmetic number, because the mean of its divisors is an integer number (4488996603).

Almost surely, 2^53440434125 is an apocalyptic number.

It is an amenable number.

53440434125 is a deficient number, since it is larger than the sum of its proper divisors (18383511523).

53440434125 is a wasteful number, since it uses less digits than its factorization.

53440434125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32886449 (or 32886439 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 53440434125 in words is "fifty-three billion, four hundred forty million, four hundred thirty-four thousand, one hundred twenty-five".