55560261 has 8 divisors (see below), whose sum is σ = 74464960. Its totient is φ = 36847872.

The previous prime is 55560247. The next prime is 55560287. The reversal of 55560261 is 16206555.

55560261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55560261 - 2⁵ = 55560229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55560221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47401 + ... + 48558.

It is an arithmetic number, because the mean of its divisors is an integer number (9308120).

Almost surely, 2^55560261 is an apocalyptic number.

It is an amenable number.

55560261 is a deficient number, since it is larger than the sum of its proper divisors (18904699).

55560261 is a wasteful number, since it uses less digits than its factorization.

55560261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96155.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55560261 is about 7453.8755691251. The cubic root of 55560261 is about 381.5821866589.

The spelling of 55560261 in words is "fifty-five million, five hundred sixty thousand, two hundred sixty-one".