51236255263215 has 128 divisors (see below), whose sum is σ = 91535497611264. Its totient is φ = 24264576000000.

The previous prime is 51236255263177. The next prime is 51236255263267.

It is a happy number.

51236255263215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51236255263215 - 2¹¹ = 51236255261167 is a prime.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 694682590 + ... + 694756340.

It is an arithmetic number, because the mean of its divisors is an integer number (715121075088).

Almost surely, 2^{51236255263215} is an apocalyptic number.

51236255263215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51236255263215 is a deficient number, since it is larger than the sum of its proper divisors (40299242348049).

51236255263215 is a wasteful number, since it uses less digits than its factorization.

51236255263215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74401.

The product of its digits is 3240000, while the sum is 48.

The spelling of 51236255263215 in words is "fifty-one trillion, two hundred thirty-six billion, two hundred fifty-five million, two hundred sixty-three thousand, two hundred fifteen".