51855033554039 has 8 divisors (see below), whose sum is σ = 51929857989840. Its totient is φ = 51780225805056.

The previous prime is 51855033554033. The next prime is 51855033554041. The reversal of 51855033554039 is 93045533055815.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51855033554039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51855033554033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054567 + ... + 10388999.

It is an arithmetic number, because the mean of its divisors is an integer number (6491232248730).

Almost surely, 2^{51855033554039} is an apocalyptic number.

51855033554039 is a deficient number, since it is larger than the sum of its proper divisors (74824435801).

51855033554039 is an equidigital number, since it uses as much as digits as its factorization.

51855033554039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343409.

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 51855033554039 in words is "fifty-one trillion, eight hundred fifty-five billion, thirty-three million, five hundred fifty-four thousand, thirty-nine".