51223005235 has 16 divisors (see below), whose sum is σ = 65413741536. Its totient is φ = 38372121088.

The previous prime is 51223005221. The next prime is 51223005247. The reversal of 51223005235 is 53250032215.

It is a cyclic number.

It is not a de Polignac number, because 51223005235 - 2¹⁷ = 51222874163 is a prime.

It is a Duffinian number.

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, 1512757 + ... + 1546246.

It is an arithmetic number, because the mean of its divisors is an integer number (4088358846).

Almost surely, 2^51223005235 is an apocalyptic number.

51223005235 is a deficient number, since it is larger than the sum of its proper divisors (14190736301).

51223005235 is a wasteful number, since it uses less digits than its factorization.

51223005235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059222.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 51223005235 in words is "fifty-one billion, two hundred twenty-three million, five thousand, two hundred thirty-five".