55406541 has 4 divisors (see below), whose sum is σ = 73875392. Its totient is φ = 36937692.

The previous prime is 55406513. The next prime is 55406557. The reversal of 55406541 is 14560455.

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 not a de Polignac number, because 55406541 - 2⁵ = 55406509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55406499 and 55406508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55406591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9234421 + ... + 9234426.

It is an arithmetic number, because the mean of its divisors is an integer number (18468848).

Almost surely, 2^55406541 is an apocalyptic number.

It is an amenable number.

55406541 is a deficient number, since it is larger than the sum of its proper divisors (18468851).

55406541 is a wasteful number, since it uses less digits than its factorization.

55406541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468850.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55406541 is about 7443.5570126116. The cubic root of 55406541 is about 381.2299505357.

Adding to 55406541 its reverse (14560455), we get a palindrome (69966996).

The spelling of 55406541 in words is "fifty-five million, four hundred six thousand, five hundred forty-one".