51059187506 has 32 divisors (see below), whose sum is σ = 82540684800. Its totient is φ = 23601715200.

The previous prime is 51059187497. The next prime is 51059187533. The reversal of 51059187506 is 60578195015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615170 + ... + 693218.

It is an arithmetic number, because the mean of its divisors is an integer number (2579396400).

Almost surely, 2^51059187506 is an apocalyptic number.

51059187506 is a deficient number, since it is larger than the sum of its proper divisors (31481497294).

51059187506 is a wasteful number, since it uses less digits than its factorization.

51059187506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78410.

The product of its (nonzero) digits is 378000, while the sum is 47.

The spelling of 51059187506 in words is "fifty-one billion, fifty-nine million, one hundred eighty-seven thousand, five hundred six".