51211301514040 has 64 divisors (see below), whose sum is σ = 119227952592000. Its totient is φ = 19773307223040.

The previous prime is 51211301513963. The next prime is 51211301514133. The reversal of 51211301514040 is 4041510311215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679941 + ... + 10143220.

It is an arithmetic number, because the mean of its divisors is an integer number (1862936759250).

Almost surely, 2^{51211301514040} is an apocalyptic number.

It is an amenable number.

51211301514040 is an abundant number, since it is smaller than the sum of its proper divisors (68016651077960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51211301514040 is a wasteful number, since it uses less digits than its factorization.

51211301514040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10827280 (or 10827276 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 51211301514040 its reverse (4041510311215), we get a palindrome (55252811825255).

The spelling of 51211301514040 in words is "fifty-one trillion, two hundred eleven billion, three hundred one million, five hundred fourteen thousand, forty".