55501330 has 8 divisors (see below), whose sum is σ = 99902412. Its totient is φ = 22200528.

The previous prime is 55501319. The next prime is 55501333. The reversal of 55501330 is 3310555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49434961 + 6066369 = 7031^2 + 2463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55501333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775057 + ... + 2775076.

Almost surely, 2^55501330 is an apocalyptic number.

55501330 is a deficient number, since it is larger than the sum of its proper divisors (44401082).

55501330 is a wasteful number, since it uses less digits than its factorization.

55501330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550140.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 55501330 is about 7449.9214760962. The cubic root of 55501330 is about 381.4472282399.

Adding to 55501330 its reverse (3310555), we get a palindrome (58811885).

The spelling of 55501330 in words is "fifty-five million, five hundred one thousand, three hundred thirty".