55205412 has 24 divisors (see below), whose sum is σ = 135592800. Its totient is φ = 17433216.

The previous prime is 55205377. The next prime is 55205419. The reversal of 55205412 is 21450255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55205419) 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, 120837 + ... + 121292.

It is an arithmetic number, because the mean of its divisors is an integer number (5649700).

Almost surely, 2^55205412 is an apocalyptic number.

It is an amenable number.

55205412 is an abundant number, since it is smaller than the sum of its proper divisors (80387388).

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

55205412 is a wasteful number, since it uses less digits than its factorization.

55205412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242155 (or 242153 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55205412 is about 7430.0344548326. The cubic root of 55205412 is about 380.7680955222.

Adding to 55205412 its reverse (21450255), we get a palindrome (76655667).

The spelling of 55205412 in words is "fifty-five million, two hundred five thousand, four hundred twelve".