55250261 has 8 divisors (see below), whose sum is σ = 60328800. Its totient is φ = 50181040.

The previous prime is 55250231. The next prime is 55250281. The reversal of 55250261 is 16205255.

55250261 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 a cyclic number.

It is not a de Polignac number, because 55250261 - 2⁶ = 55250197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55250261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250231) 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, 17330 + ... + 20268.

It is an arithmetic number, because the mean of its divisors is an integer number (7541100).

Almost surely, 2^55250261 is an apocalyptic number.

It is an amenable number.

55250261 is a deficient number, since it is larger than the sum of its proper divisors (5078539).

55250261 is a wasteful number, since it uses less digits than its factorization.

55250261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 55250261 is about 7433.0519303984. The cubic root of 55250261 is about 380.8711798956.

The spelling of 55250261 in words is "fifty-five million, two hundred fifty thousand, two hundred sixty-one".