55110140 has 24 divisors (see below), whose sum is σ = 116475072. Its totient is φ = 21902400.

The previous prime is 55110119. The next prime is 55110149. The reversal of 55110140 is 4101155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636 + ... + 11915.

It is an arithmetic number, because the mean of its divisors is an integer number (4853128).

Almost surely, 2^55110140 is an apocalyptic number.

It is an amenable number.

55110140 is an abundant number, since it is smaller than the sum of its proper divisors (61364932).

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

55110140 is a wasteful number, since it uses less digits than its factorization.

55110140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717 (or 17715 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 55110140 is about 7423.6204105544. The cubic root of 55110140 is about 380.5489296526.

Adding to 55110140 its reverse (4101155), we get a palindrome (59211295).

The spelling of 55110140 in words is "fifty-five million, one hundred ten thousand, one hundred forty".