51255231115333 has 4 divisors (see below), whose sum is σ = 58577406988960. Its totient is φ = 43933055241708.

The previous prime is 51255231115243. The next prime is 51255231115343. The reversal of 51255231115333 is 33351113255215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51255231115333 - 2⁴¹ = 49056207859781 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 (51255231115343) 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, 3661087936803 + ... + 3661087936816.

It is an arithmetic number, because the mean of its divisors is an integer number (14644351747240).

Almost surely, 2^{51255231115333} is an apocalyptic number.

It is an amenable number.

51255231115333 is a deficient number, since it is larger than the sum of its proper divisors (7322175873627).

51255231115333 is an equidigital number, since it uses as much as digits as its factorization.

51255231115333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322175873626.

The product of its digits is 202500, while the sum is 40.

The spelling of 51255231115333 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred thirty-one million, one hundred fifteen thousand, three hundred thirty-three".