51234210245564 has 12 divisors (see below), whose sum is σ = 89669189118600. Its totient is φ = 25614441925968.

The previous prime is 51234210245563. The next prime is 51234210245623. The reversal of 51234210245564 is 46554201243215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234210245563) 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, 665755919 + ... + 665832870.

It is an arithmetic number, because the mean of its divisors is an integer number (7472432426550).

Almost surely, 2^{51234210245564} is an apocalyptic number.

It is an amenable number.

51234210245564 is a deficient number, since it is larger than the sum of its proper divisors (38434978873036).

51234210245564 is a wasteful number, since it uses less digits than its factorization.

51234210245564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331598412 (or 1331598410 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 51234210245564 its reverse (46554201243215), we get a palindrome (97788411488779).

The spelling of 51234210245564 in words is "fifty-one trillion, two hundred thirty-four billion, two hundred ten million, two hundred forty-five thousand, five hundred sixty-four".