55141040 has 40 divisors (see below), whose sum is σ = 134954160. Its totient is φ = 20894976.

The previous prime is 55141039. The next prime is 55141049. The reversal of 55141040 is 4014155.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55141049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16619 + ... + 19658.

It is an arithmetic number, because the mean of its divisors is an integer number (3373854).

Almost surely, 2^55141040 is an apocalyptic number.

It is an amenable number.

55141040 is an abundant number, since it is smaller than the sum of its proper divisors (79813120).

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

55141040 is a wasteful number, since it uses less digits than its factorization.

55141040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36309 (or 36303 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55141040 is about 7425.7013136807. The cubic root of 55141040 is about 380.6200403706.

Adding to 55141040 its reverse (4014155), we get a palindrome (59155195).

The spelling of 55141040 in words is "fifty-five million, one hundred forty-one thousand, forty".