55235530 has 32 divisors (see below), whose sum is σ = 114649344. Its totient is φ = 18767616.

The previous prime is 55235519. The next prime is 55235549. The reversal of 55235530 is 3553255.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4419 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (3582792).

Almost surely, 2^55235530 is an apocalyptic number.

55235530 is an abundant number, since it is smaller than the sum of its proper divisors (59413814).

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

55235530 is a wasteful number, since it uses less digits than its factorization.

55235530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 55235530 is about 7432.0609523873. The cubic root of 55235530 is about 380.8373271924.

Adding to 55235530 its reverse (3553255), we get a palindrome (58788785).

The spelling of 55235530 in words is "fifty-five million, two hundred thirty-five thousand, five hundred thirty".