51543424325 has 12 divisors (see below), whose sum is σ = 63917146020. Its totient is φ = 41232610560.

The previous prime is 51543424319. The next prime is 51543424391. The reversal of 51543424325 is 52342434515.

It can be written as a sum of positive squares in 6 ways, for example, as 1511576641 + 50031847684 = 38879^2 + 223678^2 .

It is not a de Polignac number, because 51543424325 - 2³⁴ = 34363555141 is a prime.

It is a super-2 number, since 2×51543424325² (a number of 22 digits) contains 22 as substring.

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, 595931 + ... + 676919.

It is an arithmetic number, because the mean of its divisors is an integer number (5326428835).

Almost surely, 2^51543424325 is an apocalyptic number.

It is an amenable number.

51543424325 is a deficient number, since it is larger than the sum of its proper divisors (12373721695).

51543424325 is a wasteful number, since it uses less digits than its factorization.

51543424325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106456 (or 106451 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

The spelling of 51543424325 in words is "fifty-one billion, five hundred forty-three million, four hundred twenty-four thousand, three hundred twenty-five".