55911432 has 32 divisors (see below), whose sum is σ = 140273280. Its totient is φ = 18571200.

The previous prime is 55911407. The next prime is 55911437. The reversal of 55911432 is 23411955.

It is a self number, because there is not a number n which added to its sum of digits gives 55911432.

It is not an unprimeable number, because it can be changed into a prime (55911437) 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, 3057 + ... + 11007.

It is an arithmetic number, because the mean of its divisors is an integer number (4383540).

Almost surely, 2^55911432 is an apocalyptic number.

It is an amenable number.

55911432 is an abundant number, since it is smaller than the sum of its proper divisors (84361848).

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

55911432 is a wasteful number, since it uses less digits than its factorization.

55911432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8253 (or 8249 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 55911432 is about 7477.3947334616. The cubic root of 55911432 is about 382.3844343086.

The spelling of 55911432 in words is "fifty-five million, nine hundred eleven thousand, four hundred thirty-two".