55203261 has 8 divisors (see below), whose sum is σ = 75399744. Its totient is φ = 35904480.

The previous prime is 55203259. The next prime is 55203277. The reversal of 55203261 is 16230255.

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

It is not a de Polignac number, because 55203261 - 2¹ = 55203259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203221) 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, 224281 + ... + 224526.

It is an arithmetic number, because the mean of its divisors is an integer number (9424968).

Almost surely, 2^55203261 is an apocalyptic number.

It is an amenable number.

55203261 is a deficient number, since it is larger than the sum of its proper divisors (20196483).

55203261 is a wasteful number, since it uses less digits than its factorization.

55203261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448851.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55203261 is about 7429.8897030844. The cubic root of 55203261 is about 380.7631500964.

The spelling of 55203261 in words is "fifty-five million, two hundred three thousand, two hundred sixty-one".