55858493 has 8 divisors (see below), whose sum is σ = 58311000. Its totient is φ = 53455680.

The previous prime is 55858487. The next prime is 55858511. The reversal of 55858493 is 39485855.

It can be written as a sum of positive squares in 4 ways, for example, as 20313049 + 35545444 = 4507^2 + 5962^2 .

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 55858493 - 2¹⁰ = 55857469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55858433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10118 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (7288875).

Almost surely, 2^55858493 is an apocalyptic number.

It is an amenable number.

55858493 is a deficient number, since it is larger than the sum of its proper divisors (2452507).

55858493 is a wasteful number, since it uses less digits than its factorization.

55858493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24847.

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

The square root of 55858493 is about 7473.8539589692. The cubic root of 55858493 is about 382.2637109839.

The spelling of 55858493 in words is "fifty-five million, eight hundred fifty-eight thousand, four hundred ninety-three".