55189641 has 32 divisors (see below), whose sum is σ = 82575360. Its totient is φ = 32558400.

The previous prime is 55189621. The next prime is 55189657. The reversal of 55189641 is 14698155.

It is not a de Polignac number, because 55189641 - 2⁶ = 55189577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 55189641.

It is not an unprimeable number, because it can be changed into a prime (55189621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230800 + ... + 231038.

It is an arithmetic number, because the mean of its divisors is an integer number (2580480).

Almost surely, 2^55189641 is an apocalyptic number.

It is an amenable number.

55189641 is a deficient number, since it is larger than the sum of its proper divisors (27385719).

55189641 is a wasteful number, since it uses less digits than its factorization.

55189641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its digits is 43200, while the sum is 39.

The square root of 55189641 is about 7428.9730784275. The cubic root of 55189641 is about 380.7318329811.

The spelling of 55189641 in words is "fifty-five million, one hundred eighty-nine thousand, six hundred forty-one".