51525420543 has 10 divisors (see below), whose sum is σ = 76970072784. Its totient is φ = 34350280308.

The previous prime is 51525420533. The next prime is 51525420553. The reversal of 51525420543 is 34502452515.

51525420543 is a `hidden beast` number, since 51 + 5 + 25 + 42 + 0 + 543 = 666.

It is an interprime number because it is at equal distance from previous prime (51525420533) and next prime (51525420553).

It is not a de Polignac number, because 51525420543 - 2³² = 47230453247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51525420498 and 51525420507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51525420533) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 318058071 + ... + 318058232.

Almost surely, 2^51525420543 is an apocalyptic number.

51525420543 is a deficient number, since it is larger than the sum of its proper divisors (25444652241).

51525420543 is an equidigital number, since it uses as much as digits as its factorization.

51525420543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636116315 (or 636116306 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 51525420543 in words is "fifty-one billion, five hundred twenty-five million, four hundred twenty thousand, five hundred forty-three".