55090435 has 4 divisors (see below), whose sum is σ = 66108528. Its totient is φ = 44072344.

The previous prime is 55090433. The next prime is 55090457. The reversal of 55090435 is 53409055.

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

It is a cyclic number.

It is not a de Polignac number, because 55090435 - 2¹ = 55090433 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55090397 and 55090406.

It is not an unprimeable number, because it can be changed into a prime (55090433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5509039 + ... + 5509048.

It is an arithmetic number, because the mean of its divisors is an integer number (16527132).

Almost surely, 2^55090435 is an apocalyptic number.

55090435 is a deficient number, since it is larger than the sum of its proper divisors (11018093).

55090435 is a wasteful number, since it uses less digits than its factorization.

55090435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018092.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55090435 is about 7422.2931092756. The cubic root of 55090435 is about 380.5035683055.

The spelling of 55090435 in words is "fifty-five million, ninety thousand, four hundred thirty-five".