55228430 has 16 divisors (see below), whose sum is σ = 99529344. Its totient is φ = 22065120.

The previous prime is 55228429. The next prime is 55228463. The reversal of 55228430 is 3482255.

It is a super-3 number, since 3×55228430³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55228393 and 55228402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124 + ... + 12696.

It is an arithmetic number, because the mean of its divisors is an integer number (6220584).

Almost surely, 2^55228430 is an apocalyptic number.

55228430 is a deficient number, since it is larger than the sum of its proper divisors (44300914).

55228430 is a wasteful number, since it uses less digits than its factorization.

55228430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 55228430 is about 7431.5832767991. The cubic root of 55228430 is about 380.8210088258.

It can be divided in two parts, 552 and 28430, that added together give a palindrome (28982).

The spelling of 55228430 in words is "fifty-five million, two hundred twenty-eight thousand, four hundred thirty".