55693285 has 8 divisors (see below), whose sum is σ = 66940056. Its totient is φ = 44482560.

The previous prime is 55693273. The next prime is 55693303. The reversal of 55693285 is 58239655.

It can be written as a sum of positive squares in 4 ways, for example, as 4456321 + 51236964 = 2111^2 + 7158^2 .

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

It is not a de Polignac number, because 55693285 - 2²¹ = 53596133 is a prime.

It is a Duffinian number.

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, 5484 + ... + 11893.

It is an arithmetic number, because the mean of its divisors is an integer number (8367507).

Almost surely, 2^55693285 is an apocalyptic number.

It is an amenable number.

55693285 is a deficient number, since it is larger than the sum of its proper divisors (11246771).

55693285 is a wasteful number, since it uses less digits than its factorization.

55693285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18023.

The product of its digits is 324000, while the sum is 43.

The square root of 55693285 is about 7462.7933778177. The cubic root of 55693285 is about 381.8864756816.

The spelling of 55693285 in words is "fifty-five million, six hundred ninety-three thousand, two hundred eighty-five".