55540395 has 12 divisors (see below), whose sum is σ = 96270096. Its totient is φ = 29621520.

The previous prime is 55540379. The next prime is 55540399. The reversal of 55540395 is 59304555.

It is not a de Polignac number, because 55540395 - 2⁴ = 55540379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55540399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617071 + ... + 617160.

It is an arithmetic number, because the mean of its divisors is an integer number (8022508).

Almost surely, 2^55540395 is an apocalyptic number.

55540395 is a deficient number, since it is larger than the sum of its proper divisors (40729701).

55540395 is a wasteful number, since it uses less digits than its factorization.

55540395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234242 (or 1234239 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 55540395 is about 7452.5428546235. The cubic root of 55540395 is about 381.5367020190.

The spelling of 55540395 in words is "fifty-five million, five hundred forty thousand, three hundred ninety-five".