51033339215 has 4 divisors (see below), whose sum is σ = 61240007064. Its totient is φ = 40826671368.

The previous prime is 51033339211. The next prime is 51033339241. The reversal of 51033339215 is 51293333015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51033339215 - 2² = 51033339211 is a prime.

It is a super-2 number, since 2×51033339215² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51033339211) 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, 5103333917 + ... + 5103333926.

It is an arithmetic number, because the mean of its divisors is an integer number (15310001766).

Almost surely, 2^51033339215 is an apocalyptic number.

51033339215 is a deficient number, since it is larger than the sum of its proper divisors (10206667849).

51033339215 is a wasteful number, since it uses less digits than its factorization.

51033339215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10206667848.

The product of its (nonzero) digits is 36450, while the sum is 35.

The spelling of 51033339215 in words is "fifty-one billion, thirty-three million, three hundred thirty-nine thousand, two hundred fifteen".