55838945 has 8 divisors (see below), whose sum is σ = 68271336. Its totient is φ = 43828096.

The previous prime is 55838927. The next prime is 55838969. The reversal of 55838945 is 54983855.

It can be written as a sum of positive squares in 4 ways, for example, as 247009 + 55591936 = 497^2 + 7456^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55838945 - 2¹⁴ = 55822561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55838945.

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, 105092 + ... + 105621.

It is an arithmetic number, because the mean of its divisors is an integer number (8533917).

Almost surely, 2^55838945 is an apocalyptic number.

It is an amenable number.

55838945 is a deficient number, since it is larger than the sum of its proper divisors (12432391).

55838945 is a wasteful number, since it uses less digits than its factorization.

55838945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210771.

The product of its digits is 864000, while the sum is 47.

The square root of 55838945 is about 7472.5460855053. The cubic root of 55838945 is about 382.2191139884.

The spelling of 55838945 in words is "fifty-five million, eight hundred thirty-eight thousand, nine hundred forty-five".