55381435 has 4 divisors (see below), whose sum is σ = 66457728. Its totient is φ = 44305144.

The previous prime is 55381423. The next prime is 55381439. The reversal of 55381435 is 53418355.

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 55381435 - 2⁷ = 55381307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55381435.

It is not an unprimeable number, because it can be changed into a prime (55381439) 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, 5538139 + ... + 5538148.

It is an arithmetic number, because the mean of its divisors is an integer number (16614432).

Almost surely, 2^55381435 is an apocalyptic number.

55381435 is a deficient number, since it is larger than the sum of its proper divisors (11076293).

55381435 is a wasteful number, since it uses less digits than its factorization.

55381435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076292.

The product of its digits is 36000, while the sum is 34.

The square root of 55381435 is about 7441.8703966140. The cubic root of 55381435 is about 381.1723604331.

The spelling of 55381435 in words is "fifty-five million, three hundred eighty-one thousand, four hundred thirty-five".