53550909 has 16 divisors (see below), whose sum is σ = 79576000. Its totient is φ = 35592048.

The previous prime is 53550899. The next prime is 53550929. The reversal of 53550909 is 90905535.

It is not a de Polignac number, because 53550909 - 2¹⁵ = 53518141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53550929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6582 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (4973500).

Almost surely, 2^53550909 is an apocalyptic number.

It is an amenable number.

53550909 is a deficient number, since it is larger than the sum of its proper divisors (26025091).

53550909 is a wasteful number, since it uses less digits than its factorization.

53550909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041 (or 6035 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 53550909 is about 7317.8486592714. The cubic root of 53550909 is about 376.9255834187.

The spelling of 53550909 in words is "fifty-three million, five hundred fifty thousand, nine hundred nine".