55057211131 has 8 divisors (see below), whose sum is σ = 59331130544. Its totient is φ = 50788827360.

The previous prime is 55057211093. The next prime is 55057211149. The reversal of 55057211131 is 13111275055.

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

It is a cyclic number.

It is not a de Polignac number, because 55057211131 - 2⁷ = 55057211003 is a prime.

It is a super-2 number, since 2×55057211131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55057211093 and 55057211102.

It is not an unprimeable number, because it can be changed into a prime (55057211171) 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, 1363236 + ... + 1403041.

It is an arithmetic number, because the mean of its divisors is an integer number (7416391318).

Almost surely, 2^55057211131 is an apocalyptic number.

55057211131 is a deficient number, since it is larger than the sum of its proper divisors (4273919413).

55057211131 is a wasteful number, since it uses less digits than its factorization.

55057211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767821.

The product of its (nonzero) digits is 5250, while the sum is 31.

Adding to 55057211131 its reverse (13111275055), we get a palindrome (68168486186).

The spelling of 55057211131 in words is "fifty-five billion, fifty-seven million, two hundred eleven thousand, one hundred thirty-one".