55040960 has 112 divisors (see below), whose sum is σ = 143633952. Its totient is φ = 19968000.

The previous prime is 55040957. The next prime is 55040963. The reversal of 55040960 is 6904055.

It is an interprime number because it is at equal distance from previous prime (55040957) and next prime (55040963).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55040963) 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, 420095 + ... + 420225.

It is an arithmetic number, because the mean of its divisors is an integer number (1282446).

Almost surely, 2^55040960 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 55040960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71816976).

55040960 is an abundant number, since it is smaller than the sum of its proper divisors (88592992).

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

55040960 is a wasteful number, since it uses less digits than its factorization.

55040960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 55040960 is about 7418.9594957784. The cubic root of 55040960 is about 380.3896280642.

The spelling of 55040960 in words is "fifty-five million, forty thousand, nine hundred sixty".