55678201 has 4 divisors (see below), whose sum is σ = 57474304. Its totient is φ = 53882100.

The previous prime is 55678187. The next prime is 55678211. The reversal of 55678201 is 10287655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55678201 - 2²¹ = 53581049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55678211) 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, 898005 + ... + 898066.

It is an arithmetic number, because the mean of its divisors is an integer number (14368576).

Almost surely, 2^55678201 is an apocalyptic number.

It is an amenable number.

55678201 is a deficient number, since it is larger than the sum of its proper divisors (1796103).

55678201 is a wasteful number, since it uses less digits than its factorization.

55678201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796102.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 55678201 is about 7461.7826958442. The cubic root of 55678201 is about 381.8519957874.

The spelling of 55678201 in words is "fifty-five million, six hundred seventy-eight thousand, two hundred one".