51225210712066 has 8 divisors (see below), whose sum is σ = 78140151933840. Its totient is φ = 25178493400788.

The previous prime is 51225210712037. The next prime is 51225210712163. The reversal of 51225210712066 is 66021701252215.

It is a happy number.

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

It is a super-2 number, since 2×51225210712066² (a number of 28 digits) contains 22 as substring.

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, 217055977476 + ... + 217055977711.

It is an arithmetic number, because the mean of its divisors is an integer number (9767518991730).

Almost surely, 2^{51225210712066} is an apocalyptic number.

51225210712066 is a deficient number, since it is larger than the sum of its proper divisors (26914941221774).

51225210712066 is a wasteful number, since it uses less digits than its factorization.

51225210712066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434111955248.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 51225210712066 in words is "fifty-one trillion, two hundred twenty-five billion, two hundred ten million, seven hundred twelve thousand, sixty-six".