55351628 has 12 divisors (see below), whose sum is σ = 97368600. Its totient is φ = 27532032.

The previous prime is 55351627. The next prime is 55351631. The reversal of 55351628 is 82615355.

It is not an unprimeable number, because it can be changed into a prime (55351627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35078 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (8114050).

Almost surely, 2^55351628 is an apocalyptic number.

It is an amenable number.

55351628 is a deficient number, since it is larger than the sum of its proper divisors (42016972).

55351628 is a wasteful number, since it uses less digits than its factorization.

55351628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71896 (or 71894 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 55351628 is about 7439.8674719379. The cubic root of 55351628 is about 381.1039642069.

The spelling of 55351628 in words is "fifty-five million, three hundred fifty-one thousand, six hundred twenty-eight".