55230132 has 48 divisors (see below), whose sum is σ = 131991552. Its totient is φ = 17969280.

The previous prime is 55230101. The next prime is 55230163. The reversal of 55230132 is 23103255.

It is an interprime number because it is at equal distance from previous prime (55230101) and next prime (55230163).

It is a junction number, because it is equal to n+sod(n) for n = 55230099 and 55230108.

It is a congruent number.

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, 144013 + ... + 144395.

It is an arithmetic number, because the mean of its divisors is an integer number (2749824).

Almost surely, 2^55230132 is an apocalyptic number.

It is an amenable number.

55230132 is an abundant number, since it is smaller than the sum of its proper divisors (76761420).

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

55230132 is a wasteful number, since it uses less digits than its factorization.

55230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55230132 is about 7431.6977871816. The cubic root of 55230132 is about 380.8249207645.

Adding to 55230132 its reverse (23103255), we get a palindrome (78333387).

The spelling of 55230132 in words is "fifty-five million, two hundred thirty thousand, one hundred thirty-two".