55214560 has 48 divisors (see below), whose sum is σ = 132678000. Its totient is φ = 21707776.

The previous prime is 55214557. The next prime is 55214561. The reversal of 55214560 is 6541255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55214561) 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, 6516 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (2764125).

Almost surely, 2^55214560 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 55214560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66339000).

55214560 is an abundant number, since it is smaller than the sum of its proper divisors (77463440).

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

55214560 is a wasteful number, since it uses less digits than its factorization.

55214560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55214560 is about 7430.6500388593. The cubic root of 55214560 is about 380.7891265167.

The spelling of 55214560 in words is "fifty-five million, two hundred fourteen thousand, five hundred sixty".