55131622613155 has 8 divisors (see below), whose sum is σ = 72172305966384. Its totient is φ = 40095725536800.

The previous prime is 55131622613153. The next prime is 55131622613257.

55131622613155 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55131622613155 - 2¹ = 55131622613153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55131622613153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501196569156 + ... + 501196569265.

It is an arithmetic number, because the mean of its divisors is an integer number (9021538245798).

Almost surely, 2^{55131622613155} is an apocalyptic number.

55131622613155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55131622613155 is a deficient number, since it is larger than the sum of its proper divisors (17040683353229).

55131622613155 is a wasteful number, since it uses less digits than its factorization.

55131622613155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002393138437.

The product of its digits is 810000, while the sum is 46.

The spelling of 55131622613155 in words is "fifty-five trillion, one hundred thirty-one billion, six hundred twenty-two million, six hundred thirteen thousand, one hundred fifty-five".