55511030 has 16 divisors (see below), whose sum is σ = 100651680. Its totient is φ = 22041792.

The previous prime is 55511023. The next prime is 55511039. The reversal of 55511030 is 3011555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55510993 and 55511011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511039) 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, 18890 + ... + 21629.

It is an arithmetic number, because the mean of its divisors is an integer number (6290730).

Almost surely, 2^55511030 is an apocalyptic number.

55511030 is a deficient number, since it is larger than the sum of its proper divisors (45140650).

55511030 is a wasteful number, since it uses less digits than its factorization.

55511030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40663.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 55511030 is about 7450.5724612274. The cubic root of 55511030 is about 381.4694488640.

Adding to 55511030 its reverse (3011555), we get a palindrome (58522585).

The spelling of 55511030 in words is "fifty-five million, five hundred eleven thousand, thirty".