30555412 has 6 divisors (see below), whose sum is σ = 53471978. Its totient is φ = 15277704.

The previous prime is 30555407. The next prime is 30555419. The reversal of 30555412 is 21455503.

It can be written as a sum of positive squares in only one way, i.e., 26998416 + 3556996 = 5196^2 + 1886^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819423 + ... + 3819430.

Almost surely, 2^30555412 is an apocalyptic number.

It is an amenable number.

30555412 is a deficient number, since it is larger than the sum of its proper divisors (22916566).

30555412 is a wasteful number, since it uses less digits than its factorization.

30555412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638857 (or 7638855 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30555412 is about 5527.6949988218. The cubic root of 30555412 is about 312.6290862969.

Subtracting from 30555412 its reverse (21455503), we obtain a palindrome (9099909).

The spelling of 30555412 in words is "thirty million, five hundred fifty-five thousand, four hundred twelve".