55889638 has 32 divisors (see below), whose sum is σ = 98910720. Its totient is φ = 23190720.

The previous prime is 55889633. The next prime is 55889651. The reversal of 55889638 is 83698855.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55889633) 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, 58170 + ... + 59122.

It is an arithmetic number, because the mean of its divisors is an integer number (3090960).

Almost surely, 2^55889638 is an apocalyptic number.

55889638 is a deficient number, since it is larger than the sum of its proper divisors (43021082).

55889638 is a wasteful number, since it uses less digits than its factorization.

55889638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092.

The product of its digits is 2073600, while the sum is 52.

The square root of 55889638 is about 7475.9372656544. The cubic root of 55889638 is about 382.3347439972.

The spelling of 55889638 in words is "fifty-five million, eight hundred eighty-nine thousand, six hundred thirty-eight".