55345332 has 24 divisors (see below), whose sum is σ = 147587776. Its totient is φ = 15812928.

The previous prime is 55345331. The next prime is 55345351. The reversal of 55345332 is 23354355.

It is a self number, because there is not a number n which added to its sum of digits gives 55345332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345331) 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, 329353 + ... + 329520.

Almost surely, 2^55345332 is an apocalyptic number.

It is an amenable number.

55345332 is an abundant number, since it is smaller than the sum of its proper divisors (92242444).

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

55345332 is a wasteful number, since it uses less digits than its factorization.

55345332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658887 (or 658885 counting only the distinct ones).

The product of its digits is 27000, while the sum is 30.

The square root of 55345332 is about 7439.4443340884. Note that the first 3 decimals coincide. The cubic root of 55345332 is about 381.0895140354.

Adding to 55345332 its reverse (23354355), we get a palindrome (78699687).

The spelling of 55345332 in words is "fifty-five million, three hundred forty-five thousand, three hundred thirty-two".