51154260604551 has 32 divisors (see below), whose sum is σ = 82036503837120. Its totient is φ = 31316438495232.

The previous prime is 51154260604543. The next prime is 51154260604589. The reversal of 51154260604551 is 15540606245115.

51154260604551 is a `hidden beast` number, since 5 + 1 + 1 + 542 + 6 + 0 + 60 + 45 + 5 + 1 = 666.

It is not a de Polignac number, because 51154260604551 - 2³ = 51154260604543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51154260604497 and 51154260604506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51154260604591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377493486 + ... + 377628971.

It is an arithmetic number, because the mean of its divisors is an integer number (2563640744910).

Almost surely, 2^{51154260604551} is an apocalyptic number.

51154260604551 is a deficient number, since it is larger than the sum of its proper divisors (30882243232569).

51154260604551 is a wasteful number, since it uses less digits than its factorization.

51154260604551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755122672 (or 755122666 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

Adding to 51154260604551 its reverse (15540606245115), we get a palindrome (66694866849666).

The spelling of 51154260604551 in words is "fifty-one trillion, one hundred fifty-four billion, two hundred sixty million, six hundred four thousand, five hundred fifty-one".