55873445 has 4 divisors (see below), whose sum is σ = 67048140. Its totient is φ = 44698752.

The previous prime is 55873427. The next prime is 55873453. The reversal of 55873445 is 54437855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19307236 + 36566209 = 4394^2 + 6047^2 .

It is a cyclic number.

It is not a de Polignac number, because 55873445 - 2²² = 51679141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5587340 + ... + 5587349.

It is an arithmetic number, because the mean of its divisors is an integer number (16762035).

Almost surely, 2^55873445 is an apocalyptic number.

It is an amenable number.

55873445 is a deficient number, since it is larger than the sum of its proper divisors (11174695).

55873445 is a wasteful number, since it uses less digits than its factorization.

55873445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11174694.

The product of its digits is 336000, while the sum is 41.

The square root of 55873445 is about 7474.8541791797. The cubic root of 55873445 is about 382.2978155983.

The spelling of 55873445 in words is "fifty-five million, eight hundred seventy-three thousand, four hundred forty-five".