30551105 has 16 divisors (see below), whose sum is σ = 39635904. Its totient is φ = 22472640.

The previous prime is 30551051. The next prime is 30551141. The reversal of 30551105 is 50115503.

It is a happy number.

It is not a de Polignac number, because 30551105 - 2¹⁶ = 30485569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19190 + ... + 20720.

It is an arithmetic number, because the mean of its divisors is an integer number (2477244).

Almost surely, 2^30551105 is an apocalyptic number.

It is an amenable number.

30551105 is a deficient number, since it is larger than the sum of its proper divisors (9084799).

30551105 is a wasteful number, since it uses less digits than its factorization.

30551105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 30551105 is about 5527.3054013687. The cubic root of 30551105 is about 312.6143965179.

Adding to 30551105 its reverse (50115503), we get a palindrome (80666608).

The spelling of 30551105 in words is "thirty million, five hundred fifty-one thousand, one hundred five".