55651201 has 4 divisors (see below), whose sum is σ = 56019904. Its totient is φ = 55282500.

The previous prime is 55651199. The next prime is 55651213. The reversal of 55651201 is 10215655.

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 55651201 - 2¹ = 55651199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55651301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184125 + ... + 184426.

It is an arithmetic number, because the mean of its divisors is an integer number (14004976).

Almost surely, 2^55651201 is an apocalyptic number.

It is an amenable number.

55651201 is a deficient number, since it is larger than the sum of its proper divisors (368703).

55651201 is a wasteful number, since it uses less digits than its factorization.

55651201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368702.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 55651201 is about 7459.9732573247. The cubic root of 55651201 is about 381.7902620466.

Adding to 55651201 its reverse (10215655), we get a palindrome (65866856).

The spelling of 55651201 in words is "fifty-five million, six hundred fifty-one thousand, two hundred one".