51537210263 has 16 divisors (see below), whose sum is σ = 64339137024. Its totient is φ = 40105769760.

The previous prime is 51537210223. The next prime is 51537210293. The reversal of 51537210263 is 36201273515.

It is not a de Polignac number, because 51537210263 - 2¹⁶ = 51537144727 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 (51537210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383795 + ... + 500372.

It is an arithmetic number, because the mean of its divisors is an integer number (4021196064).

Almost surely, 2^51537210263 is an apocalyptic number.

51537210263 is a deficient number, since it is larger than the sum of its proper divisors (12801926761).

51537210263 is a wasteful number, since it uses less digits than its factorization.

51537210263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884942.

The product of its (nonzero) digits is 37800, while the sum is 35.

Adding to 51537210263 its reverse (36201273515), we get a palindrome (87738483778).

The spelling of 51537210263 in words is "fifty-one billion, five hundred thirty-seven million, two hundred ten thousand, two hundred sixty-three".