55422030 has 16 divisors (see below), whose sum is σ = 133012944. Its totient is φ = 14779200.

The previous prime is 55422011. The next prime is 55422043. The reversal of 55422030 is 3022455.

It is a junction number, because it is equal to n+sod(n) for n = 55421988 and 55422006.

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, 923671 + ... + 923730.

It is an arithmetic number, because the mean of its divisors is an integer number (8313309).

Almost surely, 2^55422030 is an apocalyptic number.

55422030 is an abundant number, since it is smaller than the sum of its proper divisors (77590914).

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

55422030 is a wasteful number, since it uses less digits than its factorization.

55422030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847411.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 55422030 is about 7444.5973699052. The cubic root of 55422030 is about 381.2654717362.

Adding to 55422030 its reverse (3022455), we get a palindrome (58444485).

The spelling of 55422030 in words is "fifty-five million, four hundred twenty-two thousand, thirty".