51120057634 has 8 divisors (see below), whose sum is σ = 78550332588. Its totient is φ = 24936613440.

The previous prime is 51120057619. The next prime is 51120057643. The reversal of 51120057634 is 43675002115.

It can be written as a sum of positive squares in 2 ways, for example, as 50894006409 + 226051225 = 225597^2 + 15035^2 .

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

It is a super-2 number, since 2×51120057634² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51120057634.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311707587 + ... + 311707750.

Almost surely, 2^51120057634 is an apocalyptic number.

51120057634 is a deficient number, since it is larger than the sum of its proper divisors (27430274954).

51120057634 is a wasteful number, since it uses less digits than its factorization.

51120057634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623415380.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 51120057634 its reverse (43675002115), we get a palindrome (94795059749).

The spelling of 51120057634 in words is "fifty-one billion, one hundred twenty million, fifty-seven thousand, six hundred thirty-four".