55130412 has 24 divisors (see below), whose sum is σ = 128786112. Its totient is φ = 18355600.

The previous prime is 55130401. The next prime is 55130417. The reversal of 55130412 is 21403155.

It is not an unprimeable number, because it can be changed into a prime (55130417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10987 + ... + 15197.

It is an arithmetic number, because the mean of its divisors is an integer number (5366088).

Almost surely, 2^55130412 is an apocalyptic number.

It is an amenable number.

55130412 is an abundant number, since it is smaller than the sum of its proper divisors (73655700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55130412 is a wasteful number, since it uses less digits than its factorization.

55130412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55130412 is about 7424.9856565518. The cubic root of 55130412 is about 380.5955849637.

Adding to 55130412 its reverse (21403155), we get a palindrome (76533567).

The spelling of 55130412 in words is "fifty-five million, one hundred thirty thousand, four hundred twelve".