51405245513141 has 64 divisors (see below), whose sum is σ = 57713071933440. Its totient is φ = 45485001273600.

The previous prime is 51405245513119. The next prime is 51405245513173. The reversal of 51405245513141 is 14131554250415.

It is a cyclic number.

It is not a de Polignac number, because 51405245513141 - 2⁶ = 51405245513077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51405245513191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3368839970 + ... + 3368855228.

It is an arithmetic number, because the mean of its divisors is an integer number (901766748960).

Almost surely, 2^{51405245513141} is an apocalyptic number.

It is an amenable number.

51405245513141 is a deficient number, since it is larger than the sum of its proper divisors (6307826420299).

51405245513141 is a wasteful number, since it uses less digits than its factorization.

51405245513141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15946.

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 51405245513141 its reverse (14131554250415), we get a palindrome (65536799763556).

The spelling of 51405245513141 in words is "fifty-one trillion, four hundred five billion, two hundred forty-five million, five hundred thirteen thousand, one hundred forty-one".