55622385 has 144 divisors (see below), whose sum is σ = 128733696. Its totient is φ = 21620736.

The previous prime is 55622341. The next prime is 55622389. The reversal of 55622385 is 58322655.

It is a happy number.

55622385 is a `hidden beast` number, since 556 + 2 + 23 + 85 = 666.

It is not a de Polignac number, because 55622385 - 2⁸ = 55622129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55622389) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1183432 + ... + 1183478.

It is an arithmetic number, because the mean of its divisors is an integer number (893984).

Almost surely, 2^55622385 is an apocalyptic number.

It is an amenable number.

55622385 is an abundant number, since it is smaller than the sum of its proper divisors (73111311).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55622385 is a wasteful number, since it uses less digits than its factorization.

55622385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 92 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 55622385 is about 7458.0416330294. The cubic root of 55622385 is about 381.7243541092.

The spelling of 55622385 in words is "fifty-five million, six hundred twenty-two thousand, three hundred eighty-five".