55343445 has 32 divisors (see below), whose sum is σ = 90484992. Its totient is φ = 28879872.

The previous prime is 55343441. The next prime is 55343459. The reversal of 55343445 is 54434355.

It is not a de Polignac number, because 55343445 - 2² = 55343441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55343441) 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, 174427 + ... + 174743.

It is an arithmetic number, because the mean of its divisors is an integer number (2827656).

Almost surely, 2^55343445 is an apocalyptic number.

It is an amenable number.

55343445 is a deficient number, since it is larger than the sum of its proper divisors (35141547).

55343445 is a wasteful number, since it uses less digits than its factorization.

55343445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 72000, while the sum is 33.

The square root of 55343445 is about 7439.3175090192. The cubic root of 55343445 is about 381.0851829018.

The spelling of 55343445 in words is "fifty-five million, three hundred forty-three thousand, four hundred forty-five".