51254041263 has 8 divisors (see below), whose sum is σ = 68340312576. Its totient is φ = 34168565400.

The previous prime is 51254041249. The next prime is 51254041291. The reversal of 51254041263 is 36214045215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51254041263 - 2⁵ = 51254041231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254091263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27393 + ... + 321338.

It is an arithmetic number, because the mean of its divisors is an integer number (8542539072).

Almost surely, 2^51254041263 is an apocalyptic number.

51254041263 is a deficient number, since it is larger than the sum of its proper divisors (17086271313).

51254041263 is a wasteful number, since it uses less digits than its factorization.

51254041263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397725.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 51254041263 its reverse (36214045215), we get a palindrome (87468086478).

The spelling of 51254041263 in words is "fifty-one billion, two hundred fifty-four million, forty-one thousand, two hundred sixty-three".