51544202122413 has 384 divisors, whose sum is σ = 104519885783040. Its totient is φ = 23617147760640.

The previous prime is 51544202122409. The next prime is 51544202122477. The reversal of 51544202122413 is 31422120244515.

51544202122413 is a `hidden beast` number, since 5 + 1 + 5 + 4 + 4 + 20 + 212 + 2 + 413 = 666.

It is not a de Polignac number, because 51544202122413 - 2² = 51544202122409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544202127413) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5815656420 + ... + 5815665282.

It is an arithmetic number, because the mean of its divisors is an integer number (272187202560).

Almost surely, 2^{51544202122413} is an apocalyptic number.

It is an amenable number.

51544202122413 is an abundant number, since it is smaller than the sum of its proper divisors (52975683660627).

51544202122413 is a wasteful number, since it uses less digits than its factorization.

51544202122413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9249 (or 9246 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 51544202122413 its reverse (31422120244515), we get a palindrome (82966322366928).

It can be divided in two parts, 51544202 and 122413, that added together give a palindrome (51666615).

The spelling of 51544202122413 in words is "fifty-one trillion, five hundred forty-four billion, two hundred two million, one hundred twenty-two thousand, four hundred thirteen".