55888361 has 4 divisors (see below), whose sum is σ = 56178132. Its totient is φ = 55598592.

The previous prime is 55888337. The next prime is 55888363. The reversal of 55888361 is 16388855.

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 15642025 + 40246336 = 3955^2 + 6344^2 .

It is a cyclic number.

It is not a de Polignac number, because 55888361 - 2⁶ = 55888297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55888363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144596 + ... + 144981.

It is an arithmetic number, because the mean of its divisors is an integer number (14044533).

Almost surely, 2^55888361 is an apocalyptic number.

It is an amenable number.

55888361 is a deficient number, since it is larger than the sum of its proper divisors (289771).

55888361 is a wasteful number, since it uses less digits than its factorization.

55888361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289770.

The product of its digits is 230400, while the sum is 44.

The square root of 55888361 is about 7475.8518578153. The cubic root of 55888361 is about 382.3318320371.

The spelling of 55888361 in words is "fifty-five million, eight hundred eighty-eight thousand, three hundred sixty-one".