55136461651 has 4 divisors (see below), whose sum is σ = 55466620272. Its totient is φ = 54806303032.

The previous prime is 55136461619. The next prime is 55136461669. The reversal of 55136461651 is 15616463155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55136461651 - 2⁵ = 55136461619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55136461598 and 55136461607.

It is not an unprimeable number, because it can be changed into a prime (55136462651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165079060 + ... + 165079393.

It is an arithmetic number, because the mean of its divisors is an integer number (13866655068).

Almost surely, 2^55136461651 is an apocalyptic number.

55136461651 is a deficient number, since it is larger than the sum of its proper divisors (330158621).

55136461651 is a wasteful number, since it uses less digits than its factorization.

55136461651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330158620.

The product of its digits is 324000, while the sum is 43.

The spelling of 55136461651 in words is "fifty-five billion, one hundred thirty-six million, four hundred sixty-one thousand, six hundred fifty-one".