55444030 has 16 divisors (see below), whose sum is σ = 104138784. Its totient is φ = 21213280.

The previous prime is 55444001. The next prime is 55444031. The reversal of 55444030 is 3044455.

It is a junction number, because it is equal to n+sod(n) for n = 55443986 and 55444004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444031) 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, 120301 + ... + 120760.

It is an arithmetic number, because the mean of its divisors is an integer number (6508674).

Almost surely, 2^55444030 is an apocalyptic number.

55444030 is a deficient number, since it is larger than the sum of its proper divisors (48694754).

55444030 is a wasteful number, since it uses less digits than its factorization.

55444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241091.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55444030 is about 7446.0748048888. The cubic root of 55444030 is about 381.3159133552.

Adding to 55444030 its reverse (3044455), we get a palindrome (58488485).

The spelling of 55444030 in words is "fifty-five million, four hundred forty-four thousand, thirty".