51120057633 has 16 divisors (see below), whose sum is σ = 68288962560. Its totient is φ = 34015648464.

The previous prime is 51120057619. The next prime is 51120057643. The reversal of 51120057633 is 33675002115.

It is not a de Polignac number, because 51120057633 - 2¹³ = 51120049441 is a prime.

It is a super-2 number, since 2×51120057633² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51120057594 and 51120057603.

It is not an unprimeable number, because it can be changed into a prime (51120057613) 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, 4985610 + ... + 4995852.

It is an arithmetic number, because the mean of its divisors is an integer number (4268060160).

Almost surely, 2^51120057633 is an apocalyptic number.

It is an amenable number.

51120057633 is a deficient number, since it is larger than the sum of its proper divisors (17168904927).

51120057633 is a wasteful number, since it uses less digits than its factorization.

51120057633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13228.

The product of its (nonzero) digits is 18900, while the sum is 33.

Adding to 51120057633 its reverse (33675002115), we get a palindrome (84795059748).

The spelling of 51120057633 in words is "fifty-one billion, one hundred twenty million, fifty-seven thousand, six hundred thirty-three".