55420135 has 8 divisors (see below), whose sum is σ = 66661056. Its totient is φ = 44231520.

The previous prime is 55420129. The next prime is 55420177. The reversal of 55420135 is 53102455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55420135 - 2¹¹ = 55418087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10704 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (8332632).

Almost surely, 2^55420135 is an apocalyptic number.

55420135 is a deficient number, since it is larger than the sum of its proper divisors (11240921).

55420135 is a wasteful number, since it uses less digits than its factorization.

55420135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26153.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55420135 is about 7444.4700953124. The cubic root of 55420135 is about 381.2611262542.

It can be divided in two parts, 55420 and 135, that added together give a palindrome (55555).

The spelling of 55420135 in words is "fifty-five million, four hundred twenty thousand, one hundred thirty-five".