53431540425 has 18 divisors (see below), whose sum is σ = 95701826142. Its totient is φ = 28496821440.

The previous prime is 53431540391. The next prime is 53431540429. The reversal of 53431540425 is 52404513435.

53431540425 is a `hidden beast` number, since 53 + 43 + 1 + 540 + 4 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 710329104 + 52721211321 = 26652^2 + 229611^2 .

It is not a de Polignac number, because 53431540425 - 2¹⁰ = 53431539401 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53431540425.

It is not an unprimeable number, because it can be changed into a prime (53431540429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 118736532 + ... + 118736981.

It is an arithmetic number, because the mean of its divisors is an integer number (5316768119).

Almost surely, 2^53431540425 is an apocalyptic number.

It is an amenable number.

53431540425 is a deficient number, since it is larger than the sum of its proper divisors (42270285717).

53431540425 is a wasteful number, since it uses less digits than its factorization.

53431540425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237473529 (or 237473521 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 53431540425 in words is "fifty-three billion, four hundred thirty-one million, five hundred forty thousand, four hundred twenty-five".