30550513 has 16 divisors (see below), whose sum is σ = 37238400. Its totient is φ = 24466176.

The previous prime is 30550501. The next prime is 30550523. The reversal of 30550513 is 31505503.

It is a happy number.

It is not a de Polignac number, because 30550513 - 2²¹ = 28453361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30550523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16870 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (2327400).

Almost surely, 2^30550513 is an apocalyptic number.

It is an amenable number.

30550513 is a deficient number, since it is larger than the sum of its proper divisors (6687887).

30550513 is a wasteful number, since it uses less digits than its factorization.

30550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 30550513 is about 5527.2518487943. The cubic root of 30550513 is about 312.6123772901.

The spelling of 30550513 in words is "thirty million, five hundred fifty thousand, five hundred thirteen".