51309332355 has 8 divisors (see below), whose sum is σ = 82094931792. Its totient is φ = 27364977248.

The previous prime is 51309332339. The next prime is 51309332387. The reversal of 51309332355 is 55323390315.

51309332355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51309332355 - 2⁴ = 51309332339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1710311064 + ... + 1710311093.

It is an arithmetic number, because the mean of its divisors is an integer number (10261866474).

Almost surely, 2^51309332355 is an apocalyptic number.

51309332355 is a deficient number, since it is larger than the sum of its proper divisors (30785599437).

51309332355 is a wasteful number, since it uses less digits than its factorization.

51309332355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420622165.

The product of its (nonzero) digits is 182250, while the sum is 39.

The spelling of 51309332355 in words is "fifty-one billion, three hundred nine million, three hundred thirty-two thousand, three hundred fifty-five".