55311456 has 24 divisors (see below), whose sum is σ = 145192824. Its totient is φ = 18437120.

The previous prime is 55311427. The next prime is 55311457. The reversal of 55311456 is 65411355.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55311457) 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, 287985 + ... + 288176.

It is an arithmetic number, because the mean of its divisors is an integer number (6049701).

Almost surely, 2^55311456 is an apocalyptic number.

It is an amenable number.

55311456 is an abundant number, since it is smaller than the sum of its proper divisors (89881368).

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

55311456 is a wasteful number, since it uses less digits than its factorization.

55311456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576174 (or 576166 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 55311456 is about 7437.1672026384. The cubic root of 55311456 is about 381.0117452170.

The spelling of 55311456 in words is "fifty-five million, three hundred eleven thousand, four hundred fifty-six".