51057062566 has 4 divisors (see below), whose sum is σ = 76585593852. Its totient is φ = 25528531282.

The previous prime is 51057062477. The next prime is 51057062627. The reversal of 51057062566 is 66526075015.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12764265640 + ... + 12764265643.

It is an arithmetic number, because the mean of its divisors is an integer number (19146398463).

Almost surely, 2^51057062566 is an apocalyptic number.

51057062566 is a deficient number, since it is larger than the sum of its proper divisors (25528531286).

51057062566 is a wasteful number, since it uses less digits than its factorization.

51057062566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25528531285.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 51057062566 in words is "fifty-one billion, fifty-seven million, sixty-two thousand, five hundred sixty-six".