51504214013 has 8 divisors (see below), whose sum is σ = 59444751360. Its totient is φ = 43709374800.

The previous prime is 51504214007. The next prime is 51504214051. The reversal of 51504214013 is 31041240515.

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

It is not a de Polignac number, because 51504214013 - 2¹⁰ = 51504212989 is a prime.

It is a super-2 number, since 2×51504214013² (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 (51504214313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36423773 + ... + 36425186.

It is an arithmetic number, because the mean of its divisors is an integer number (7430593920).

Almost surely, 2^51504214013 is an apocalyptic number.

It is an amenable number.

51504214013 is a deficient number, since it is larger than the sum of its proper divisors (7940537347).

51504214013 is a wasteful number, since it uses less digits than its factorization.

51504214013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72849067.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51504214013 its reverse (31041240515), we get a palindrome (82545454528).

The spelling of 51504214013 in words is "fifty-one billion, five hundred four million, two hundred fourteen thousand, thirteen".