55651211150331 has 32 divisors (see below), whose sum is σ = 75359938447872. Its totient is φ = 36525883783680.

The previous prime is 55651211150291. The next prime is 55651211150341. The reversal of 55651211150331 is 13305111215655.

It is not a de Polignac number, because 55651211150331 - 2⁷ = 55651211150203 is a prime.

It is a super-2 number, since 2×55651211150331² (a number of 28 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 55651211150331.

It is not an unprimeable number, because it can be changed into a prime (55651211150341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1314646836 + ... + 1314689166.

It is an arithmetic number, because the mean of its divisors is an integer number (2354998076496).

Almost surely, 2^{55651211150331} is an apocalyptic number.

55651211150331 is a deficient number, since it is larger than the sum of its proper divisors (19708727297541).

55651211150331 is a wasteful number, since it uses less digits than its factorization.

55651211150331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67203.

The product of its (nonzero) digits is 67500, while the sum is 39.

Adding to 55651211150331 its reverse (13305111215655), we get a palindrome (68956322365986).

The spelling of 55651211150331 in words is "fifty-five trillion, six hundred fifty-one billion, two hundred eleven million, one hundred fifty thousand, three hundred thirty-one".