55013332 has 24 divisors (see below), whose sum is σ = 109593792. Its totient is φ = 23918400.

The previous prime is 55013327. The next prime is 55013353. The reversal of 55013332 is 23331055.

It is a happy number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26169 + ... + 28192.

It is an arithmetic number, because the mean of its divisors is an integer number (4566408).

Almost surely, 2^55013332 is an apocalyptic number.

It is an amenable number.

55013332 is a deficient number, since it is larger than the sum of its proper divisors (54580460).

55013332 is a wasteful number, since it uses less digits than its factorization.

55013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54399 (or 54397 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 55013332 is about 7417.0972758890. The cubic root of 55013332 is about 380.3259714495.

Adding to 55013332 its reverse (23331055), we get a palindrome (78344387).

The spelling of 55013332 in words is "fifty-five million, thirteen thousand, three hundred thirty-two".