55328103 has 20 divisors (see below), whose sum is σ = 83481288. Its totient is φ = 36514800.

The previous prime is 55328101. The next prime is 55328107. The reversal of 55328103 is 30182355.

55328103 is a `hidden beast` number, since 553 + 2 + 8 + 103 = 666.

It is not a de Polignac number, because 55328103 - 2¹ = 55328101 is a prime.

It is a super-2 number, since 2×55328103² = 6122397963157218, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55328101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4800 + ... + 11562.

Almost surely, 2^55328103 is an apocalyptic number.

55328103 is a deficient number, since it is larger than the sum of its proper divisors (28153185).

55328103 is a wasteful number, since it uses less digits than its factorization.

55328103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876 (or 6867 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 55328103 is about 7438.2862945708. The cubic root of 55328103 is about 381.0499655470.

The spelling of 55328103 in words is "fifty-five million, three hundred twenty-eight thousand, one hundred three".