55250560 has 64 divisors (see below), whose sum is σ = 133293600. Its totient is φ = 21898240.

The previous prime is 55250557. The next prime is 55250563. The reversal of 55250560 is 6505255.

It is an interprime number because it is at equal distance from previous prime (55250557) and next prime (55250563).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (55250563) 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, 83511 + ... + 84169.

Almost surely, 2^55250560 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 55250560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66646800).

55250560 is an abundant number, since it is smaller than the sum of its proper divisors (78043040).

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

55250560 is a wasteful number, since it uses less digits than its factorization.

55250560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55250560 is about 7433.0720432403. The cubic root of 55250560 is about 380.8718669529.

The spelling of 55250560 in words is "fifty-five million, two hundred fifty thousand, five hundred sixty".