55103405 has 16 divisors (see below), whose sum is σ = 75717504. Its totient is φ = 37711680.

The previous prime is 55103381. The next prime is 55103431. The reversal of 55103405 is 50430155.

It is not a de Polignac number, because 55103405 - 2¹⁰ = 55102381 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 15 ways as a sum of consecutive naturals, for example, 21650 + ... + 24060.

It is an arithmetic number, because the mean of its divisors is an integer number (4732344).

Almost surely, 2^55103405 is an apocalyptic number.

It is an amenable number.

55103405 is a deficient number, since it is larger than the sum of its proper divisors (20614099).

55103405 is a wasteful number, since it uses less digits than its factorization.

55103405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55103405 is about 7423.1667770568. The cubic root of 55103405 is about 380.5334267496.

The spelling of 55103405 in words is "fifty-five million, one hundred three thousand, four hundred five".