55331332 has 24 divisors (see below), whose sum is σ = 110859840. Its totient is φ = 23671200.

The previous prime is 55331327. The next prime is 55331351. The reversal of 55331332 is 23313355.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55331297 and 55331306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18219 + ... + 21037.

It is an arithmetic number, because the mean of its divisors is an integer number (4619160).

Almost surely, 2^55331332 is an apocalyptic number.

It is an amenable number.

55331332 is an abundant number, since it is smaller than the sum of its proper divisors (55528508).

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

55331332 is a wasteful number, since it uses less digits than its factorization.

55331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531 (or 3529 counting only the distinct ones).

The product of its digits is 4050, while the sum is 25.

The square root of 55331332 is about 7438.5033440874. The cubic root of 55331332 is about 381.0573782140.

Adding to 55331332 its reverse (23313355), we get a palindrome (78644687).

The spelling of 55331332 in words is "fifty-five million, three hundred thirty-one thousand, three hundred thirty-two".