55141020 has 96 divisors (see below), whose sum is σ = 187165440. Its totient is φ = 13366080.

The previous prime is 55141003. The next prime is 55141027. The reversal of 55141020 is 2014155.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 55140984 and 55141002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55141027) 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, 1299 + ... + 10581.

It is an arithmetic number, because the mean of its divisors is an integer number (1949640).

Almost surely, 2^55141020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55141020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93582720).

55141020 is an abundant number, since it is smaller than the sum of its proper divisors (132024420).

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

55141020 is a wasteful number, since it uses less digits than its factorization.

55141020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312 (or 9304 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 55141020 is about 7425.6999670065. The cubic root of 55141020 is about 380.6199943529.

Adding to 55141020 its reverse (2014155), we get a palindrome (57155175).

The spelling of 55141020 in words is "fifty-five million, one hundred forty-one thousand, twenty".