55330374 has 32 divisors (see below), whose sum is σ = 123296256. Its totient is φ = 16409120.

The previous prime is 55330367. The next prime is 55330391. The reversal of 55330374 is 47303355.

It is a super-2 number, since 2×55330374² = 6122900573959752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5817 + ... + 12020.

It is an arithmetic number, because the mean of its divisors is an integer number (3853008).

Almost surely, 2^55330374 is an apocalyptic number.

55330374 is an abundant number, since it is smaller than the sum of its proper divisors (67965882).

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

55330374 is a wasteful number, since it uses less digits than its factorization.

55330374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17900.

The product of its (nonzero) digits is 18900, while the sum is 30.

The square root of 55330374 is about 7438.4389491344. The cubic root of 55330374 is about 381.0551790075.

The spelling of 55330374 in words is "fifty-five million, three hundred thirty thousand, three hundred seventy-four".