55635541 has 4 divisors (see below), whose sum is σ = 59915212. Its totient is φ = 51355872.

The previous prime is 55635521. The next prime is 55635581. The reversal of 55635541 is 14553655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14553655 = 5 ⋅2910731.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 39062500 = 4071^2 + 6250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55635541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55635497 and 55635506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55635511) 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, 2139816 + ... + 2139841.

It is an arithmetic number, because the mean of its divisors is an integer number (14978803).

Almost surely, 2^55635541 is an apocalyptic number.

It is an amenable number.

55635541 is a deficient number, since it is larger than the sum of its proper divisors (4279671).

55635541 is a wasteful number, since it uses less digits than its factorization.

55635541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279670.

The product of its digits is 45000, while the sum is 34.

The square root of 55635541 is about 7458.9235818582. The cubic root of 55635541 is about 381.7544473275.

The spelling of 55635541 in words is "fifty-five million, six hundred thirty-five thousand, five hundred forty-one".