51243154001541 has 6 divisors (see below), whose sum is σ = 74017889113350. Its totient is φ = 34162102667688.

The previous prime is 51243154001539. The next prime is 51243154001573. The reversal of 51243154001541 is 14510045134215.

51243154001541 is a `hidden beast` number, since 5 + 1 + 243 + 1 + 5 + 400 + 1 + 5 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29803901897025 + 21439252104516 = 5459295^2 + 4630254^2 .

It is not a de Polignac number, because 51243154001541 - 2¹ = 51243154001539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51243154001496 and 51243154001505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51243154000541) 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 5 ways as a sum of consecutive naturals, for example, 2846841888966 + ... + 2846841888983.

It is an arithmetic number, because the mean of its divisors is an integer number (12336314852225).

Almost surely, 2^{51243154001541} is an apocalyptic number.

It is an amenable number.

51243154001541 is a deficient number, since it is larger than the sum of its proper divisors (22774735111809).

51243154001541 is a wasteful number, since it uses less digits than its factorization.

51243154001541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693683777955 (or 5693683777952 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 51243154001541 its reverse (14510045134215), we get a palindrome (65753199135756).

The spelling of 51243154001541 in words is "fifty-one trillion, two hundred forty-three billion, one hundred fifty-four million, one thousand, five hundred forty-one".