55032340 has 24 divisors (see below), whose sum is σ = 126074592. Its totient is φ = 20011680.

The previous prime is 55032337. The next prime is 55032359. The reversal of 55032340 is 4323055.

55032340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124854 + ... + 125293.

It is an arithmetic number, because the mean of its divisors is an integer number (5253108).

Almost surely, 2^55032340 is an apocalyptic number.

It is an amenable number.

55032340 is an abundant number, since it is smaller than the sum of its proper divisors (71042252).

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

55032340 is a wasteful number, since it uses less digits than its factorization.

55032340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250167 (or 250165 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55032340 is about 7418.3785290318. The cubic root of 55032340 is about 380.3697693397.

Adding to 55032340 its reverse (4323055), we get a palindrome (59355395).

The spelling of 55032340 in words is "fifty-five million, thirty-two thousand, three hundred forty".