51034321513 has 8 divisors (see below), whose sum is σ = 58326341760. Its totient is φ = 43742652000.

The previous prime is 51034321483. The next prime is 51034321517. The reversal of 51034321513 is 31512343015.

It is a happy number.

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 51034321513 - 2¹³ = 51034313321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51034321517) 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, 420453 + ... + 528061.

It is an arithmetic number, because the mean of its divisors is an integer number (7290792720).

Almost surely, 2^51034321513 is an apocalyptic number.

It is an amenable number.

51034321513 is a deficient number, since it is larger than the sum of its proper divisors (7292020247).

51034321513 is a wasteful number, since it uses less digits than its factorization.

51034321513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175367.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 51034321513 its reverse (31512343015), we get a palindrome (82546664528).

The spelling of 51034321513 in words is "fifty-one billion, thirty-four million, three hundred twenty-one thousand, five hundred thirteen".