905550055509 has 8 divisors (see below), whose sum is σ = 1317163717152. Its totient is φ = 548818215440.

The previous prime is 905550055483. The next prime is 905550055583.

905550055509 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 905550055509 - 2¹³ = 905550047317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905550005509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13720455354 + ... + 13720455419.

It is an arithmetic number, because the mean of its divisors is an integer number (164645464644).

Almost surely, 2^905550055509 is an apocalyptic number.

It is an amenable number.

905550055509 is a deficient number, since it is larger than the sum of its proper divisors (411613661643).

905550055509 is a wasteful number, since it uses less digits than its factorization.

905550055509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27440910787.

The product of its (nonzero) digits is 1265625, while the sum is 48.

The spelling of 905550055509 in words is "nine hundred five billion, five hundred fifty million, fifty-five thousand, five hundred nine".