55323845 has 8 divisors (see below), whose sum is σ = 66429720. Its totient is φ = 44231680.

The previous prime is 55323823. The next prime is 55323859. The reversal of 55323845 is 54832355.

It is a Cunningham number, because it is equal to 7438²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 19909444 + 35414401 = 4462^2 + 5951^2 .

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

It is not a de Polignac number, because 55323845 - 2⁶ = 55323781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10925 + ... + 15165.

It is an arithmetic number, because the mean of its divisors is an integer number (8303715).

Almost surely, 2^55323845 is an apocalyptic number.

It is an amenable number.

55323845 is a deficient number, since it is larger than the sum of its proper divisors (11105875).

55323845 is a wasteful number, since it uses less digits than its factorization.

55323845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855.

The product of its digits is 72000, while the sum is 35.

The square root of 55323845 is about 7438.0000672224. Note that the first 4 decimals coincide. The cubic root of 55323845 is about 381.0401902111.

The spelling of 55323845 in words is "fifty-five million, three hundred twenty-three thousand, eight hundred forty-five".