55158320 has 60 divisors (see below), whose sum is σ = 149191344. Its totient is φ = 18910080.

The previous prime is 55158281. The next prime is 55158329. The reversal of 55158320 is 2385155.

It is not an unprimeable number, because it can be changed into a prime (55158329) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3116 + ... + 10955.

Almost surely, 2^55158320 is an apocalyptic number.

It is an amenable number.

55158320 is an abundant number, since it is smaller than the sum of its proper divisors (94033024).

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

55158320 is a wasteful number, since it uses less digits than its factorization.

55158320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098 (or 14085 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 55158320 is about 7426.8647490041. The cubic root of 55158320 is about 380.6597955595.

The spelling of 55158320 in words is "fifty-five million, one hundred fifty-eight thousand, three hundred twenty".