55622131 has 8 divisors (see below), whose sum is σ = 56919024. Its totient is φ = 54339840.

The previous prime is 55622129. The next prime is 55622141. The reversal of 55622131 is 13122655.

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 55622131 - 2¹ = 55622129 is a prime.

It is a super-2 number, since 2×55622131² = 6187642913962322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55622096 and 55622105.

It is not an unprimeable number, because it can be changed into a prime (55622111) 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, 4251 + ... + 11371.

It is an arithmetic number, because the mean of its divisors is an integer number (7114878).

Almost surely, 2^55622131 is an apocalyptic number.

55622131 is a deficient number, since it is larger than the sum of its proper divisors (1296893).

55622131 is a wasteful number, since it uses less digits than its factorization.

55622131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301.

The product of its digits is 1800, while the sum is 25.

The square root of 55622131 is about 7458.0246044110. The cubic root of 55622131 is about 381.7237730594.

Adding to 55622131 its reverse (13122655), we get a palindrome (68744786).

The spelling of 55622131 in words is "fifty-five million, six hundred twenty-two thousand, one hundred thirty-one".