51320225266 has 8 divisors (see below), whose sum is σ = 80327309184. Its totient is φ = 24544455540.

The previous prime is 51320225249. The next prime is 51320225267. The reversal of 51320225266 is 66252202315.

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

It is not an unprimeable number, because it can be changed into a prime (51320225267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557828490 + ... + 557828581.

It is an arithmetic number, because the mean of its divisors is an integer number (10040913648).

Almost surely, 2^51320225266 is an apocalyptic number.

51320225266 is a deficient number, since it is larger than the sum of its proper divisors (29007083918).

51320225266 is a wasteful number, since it uses less digits than its factorization.

51320225266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115657096.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 51320225266 in words is "fifty-one billion, three hundred twenty million, two hundred twenty-five thousand, two hundred sixty-six".