51025504506 has 32 divisors (see below), whose sum is σ = 102836685888. Its totient is φ = 16877654400.

The previous prime is 51025504487. The next prime is 51025504547. The reversal of 51025504506 is 60540552015.

It is a super-3 number, since 3×51025504506³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 2332636 + ... + 2354408.

It is an arithmetic number, because the mean of its divisors is an integer number (3213646434).

Almost surely, 2^51025504506 is an apocalyptic number.

51025504506 is an abundant number, since it is smaller than the sum of its proper divisors (51811181382).

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

51025504506 is a wasteful number, since it uses less digits than its factorization.

51025504506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24766.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 51025504506 in words is "fifty-one billion, twenty-five million, five hundred four thousand, five hundred six".