605455551 has 12 divisors (see below), whose sum is σ = 893154912. Its totient is φ = 395048736.

The previous prime is 605455421. The next prime is 605455559. The reversal of 605455551 is 155554506.

605455551 is a `hidden beast` number, since 6 + 0 + 54 + 55 + 551 = 666.

It is not a de Polignac number, because 605455551 - 2¹⁰ = 605454527 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605455559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 715246 + ... + 716091.

It is an arithmetic number, because the mean of its divisors is an integer number (74429576).

Almost surely, 2^605455551 is an apocalyptic number.

605455551 is a deficient number, since it is larger than the sum of its proper divisors (287699361).

605455551 is a wasteful number, since it uses less digits than its factorization.

605455551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431390 (or 1431387 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 605455551 is about 24606.0064008770. The cubic root of 605455551 is about 845.9812840619.

The spelling of 605455551 in words is "six hundred five million, four hundred fifty-five thousand, five hundred fifty-one".