55385022 has 32 divisors (see below), whose sum is σ = 138104064. Its totient is φ = 14385600.

The previous prime is 55385009. The next prime is 55385023. The reversal of 55385022 is 22058355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55385023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59479 + ... + 60402.

It is an arithmetic number, because the mean of its divisors is an integer number (4315752).

Almost surely, 2^55385022 is an apocalyptic number.

55385022 is an abundant number, since it is smaller than the sum of its proper divisors (82719042).

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

55385022 is a wasteful number, since it uses less digits than its factorization.

55385022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119904.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55385022 is about 7442.1113939527. Note that the first 3 decimals coincide. The cubic root of 55385022 is about 381.1805896393.

The spelling of 55385022 in words is "fifty-five million, three hundred eighty-five thousand, twenty-two".