55533345 has 32 divisors (see below), whose sum is σ = 102187008. Its totient is φ = 25226688.

The previous prime is 55533341. The next prime is 55533383. The reversal of 55533345 is 54333555.

It is not a de Polignac number, because 55533345 - 2² = 55533341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55533341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15952 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 2^55533345 is an apocalyptic number.

It is an amenable number.

55533345 is a deficient number, since it is larger than the sum of its proper divisors (46653663).

55533345 is a wasteful number, since it uses less digits than its factorization.

55533345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349.

The product of its digits is 67500, while the sum is 33.

The square root of 55533345 is about 7452.0698466936. The cubic root of 55533345 is about 381.5205579280.

The spelling of 55533345 in words is "fifty-five million, five hundred thirty-three thousand, three hundred forty-five".