5511280 has 20 divisors (see below), whose sum is σ = 12813912. Its totient is φ = 2204480.

The previous prime is 5511271. The next prime is 5511287. The reversal of 5511280 is 821155.

It is a tau number, because it is divible by the number of its divisors (20).

It is an Ulam number.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34366 + ... + 34525.

Almost surely, 2^5511280 is an apocalyptic number.

It is an amenable number.

5511280 is an abundant number, since it is smaller than the sum of its proper divisors (7302632).

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

5511280 is a wasteful number, since it uses less digits than its factorization.

5511280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68904 (or 68898 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 5511280 is about 2347.6115521951. The cubic root of 5511280 is about 176.6380080881.

The spelling of 5511280 in words is "five million, five hundred eleven thousand, two hundred eighty".