605113551 has 32 divisors (see below), whose sum is σ = 1026309120. Its totient is φ = 345179232.

The previous prime is 605113543. The next prime is 605113559. The reversal of 605113551 is 155311506.

605113551 is a `hidden beast` number, since 60 + 51 + 1 + 3 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (605113543) and next prime (605113559).

It is not a de Polignac number, because 605113551 - 2³ = 605113543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605113559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120966 + ... + 125868.

It is an arithmetic number, because the mean of its divisors is an integer number (32072160).

Almost surely, 2^605113551 is an apocalyptic number.

605113551 is a deficient number, since it is larger than the sum of its proper divisors (421195569).

605113551 is a wasteful number, since it uses less digits than its factorization.

605113551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572 (or 5566 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 605113551 is about 24599.0558965177. The cubic root of 605113551 is about 845.8219659571.

The spelling of 605113551 in words is "six hundred five million, one hundred thirteen thousand, five hundred fifty-one".