55411261 has 4 divisors (see below), whose sum is σ = 56590272. Its totient is φ = 54232252.

The previous prime is 55411259. The next prime is 55411289. The reversal of 55411261 is 16211455.

It is a happy number.

55411261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55411261 - 2¹ = 55411259 is a prime.

It is a super-2 number, since 2×55411261² = 6140815691220242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55411231) 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 3 ways as a sum of consecutive naturals, for example, 589435 + ... + 589528.

It is an arithmetic number, because the mean of its divisors is an integer number (14147568).

Almost surely, 2^55411261 is an apocalyptic number.

It is an amenable number.

55411261 is a deficient number, since it is larger than the sum of its proper divisors (1179011).

55411261 is a wasteful number, since it uses less digits than its factorization.

55411261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179010.

The product of its digits is 1200, while the sum is 25.

The square root of 55411261 is about 7443.8740585800. The cubic root of 55411261 is about 381.2407756973.

The spelling of 55411261 in words is "fifty-five million, four hundred eleven thousand, two hundred sixty-one".