51223415201 has 8 divisors (see below), whose sum is σ = 59078120640. Its totient is φ = 43502978448.

The previous prime is 51223415197. The next prime is 51223415279. The reversal of 51223415201 is 10251432215.

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

It is a cyclic number.

It is not a de Polignac number, because 51223415201 - 2² = 51223415197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51223411201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33566351 + ... + 33567876.

It is an arithmetic number, because the mean of its divisors is an integer number (7384765080).

Almost surely, 2^51223415201 is an apocalyptic number.

It is an amenable number.

51223415201 is a deficient number, since it is larger than the sum of its proper divisors (7854705439).

51223415201 is a wasteful number, since it uses less digits than its factorization.

51223415201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67134343.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51223415201 its reverse (10251432215), we get a palindrome (61474847416).

The spelling of 51223415201 in words is "fifty-one billion, two hundred twenty-three million, four hundred fifteen thousand, two hundred one".