55549541 has 4 divisors (see below), whose sum is σ = 55656684. Its totient is φ = 55442400.

The previous prime is 55549537. The next prime is 55549573. The reversal of 55549541 is 14594555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28665316 + 26884225 = 5354^2 + 5185^2 .

It is a cyclic number.

It is not a de Polignac number, because 55549541 - 2² = 55549537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55549495 and 55549504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55549511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52790 + ... + 53831.

It is an arithmetic number, because the mean of its divisors is an integer number (13914171).

Almost surely, 2^55549541 is an apocalyptic number.

It is an amenable number.

55549541 is a deficient number, since it is larger than the sum of its proper divisors (107143).

55549541 is a wasteful number, since it uses less digits than its factorization.

55549541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107142.

The product of its digits is 90000, while the sum is 38.

The square root of 55549541 is about 7453.1564454263. The cubic root of 55549541 is about 381.5576437927.

The spelling of 55549541 in words is "fifty-five million, five hundred forty-nine thousand, five hundred forty-one".