51225500002 has 8 divisors (see below), whose sum is σ = 81358147116. Its totient is φ = 24106117632.

The previous prime is 51225499961. The next prime is 51225500023. The reversal of 51225500002 is 20000552215.

It can be written as a sum of positive squares in 2 ways, for example, as 51125279881 + 100220121 = 226109^2 + 10011^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753316143 + ... + 753316210.

Almost surely, 2^51225500002 is an apocalyptic number.

51225500002 is a deficient number, since it is larger than the sum of its proper divisors (30132647114).

51225500002 is a wasteful number, since it uses less digits than its factorization.

51225500002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506632372.

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 51225500002 in words is "fifty-one billion, two hundred twenty-five million, five hundred thousand, two".