55861201 has 8 divisors (see below), whose sum is σ = 64524384. Its totient is φ = 47795520.

The previous prime is 55861199. The next prime is 55861207. The reversal of 55861201 is 10216855.

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 55861201 - 2¹ = 55861199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55861201.

It is not an unprimeable number, because it can be changed into a prime (55861207) 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, 149175 + ... + 149548.

It is an arithmetic number, because the mean of its divisors is an integer number (8065548).

Almost surely, 2^55861201 is an apocalyptic number.

It is an amenable number.

55861201 is a deficient number, since it is larger than the sum of its proper divisors (8663183).

55861201 is a wasteful number, since it uses less digits than its factorization.

55861201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298751.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 55861201 is about 7474.0351216729. The cubic root of 55861201 is about 382.2698882206.

The spelling of 55861201 in words is "fifty-five million, eight hundred sixty-one thousand, two hundred one".