51545524542 has 8 divisors (see below), whose sum is σ = 103091049096. Its totient is φ = 17181841512.

The previous prime is 51545524501. The next prime is 51545524559. The reversal of 51545524542 is 24542554515.

It is a sphenic number, since it is the product of 3 distinct primes.

51545524542 is an admirable number.

It is a super-2 number, since 2×51545524542² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51545524494 and 51545524503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295460373 + ... + 4295460384.

It is an arithmetic number, because the mean of its divisors is an integer number (12886381137).

Almost surely, 2^51545524542 is an apocalyptic number.

51545524542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51545524542 is a wasteful number, since it uses less digits than its factorization.

51545524542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590920762.

The product of its digits is 800000, while the sum is 42.

The spelling of 51545524542 in words is "fifty-one billion, five hundred forty-five million, five hundred twenty-four thousand, five hundred forty-two".