55131262361 has 32 divisors (see below), whose sum is σ = 70145906688. Its totient is φ = 42216894720.

The previous prime is 55131262357. The next prime is 55131262379. The reversal of 55131262361 is 16326213155.

It is not a de Polignac number, because 55131262361 - 2² = 55131262357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55131262321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281666 + ... + 435428.

It is an arithmetic number, because the mean of its divisors is an integer number (2192059584).

Almost surely, 2^55131262361 is an apocalyptic number.

It is an amenable number.

55131262361 is a deficient number, since it is larger than the sum of its proper divisors (15014644327).

55131262361 is a wasteful number, since it uses less digits than its factorization.

55131262361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153941.

The product of its digits is 32400, while the sum is 35.

The spelling of 55131262361 in words is "fifty-five billion, one hundred thirty-one million, two hundred sixty-two thousand, three hundred sixty-one".