605145551 has 2 divisors, whose sum is σ = 605145552. Its totient is φ = 605145550.

The previous prime is 605145533. The next prime is 605145589. The reversal of 605145551 is 155541506.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605145551 is a prime.

It is a super-2 number, since 2×605145551² = 732402275790187202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625145551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302572775 + 302572776.

It is an arithmetic number, because the mean of its divisors is an integer number (302572776).

Almost surely, 2^605145551 is an apocalyptic number.

605145551 is a deficient number, since it is larger than the sum of its proper divisors (1).

605145551 is an equidigital number, since it uses as much as digits as its factorization.

605145551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 605145551 is about 24599.7063193852. The cubic root of 605145551 is about 845.8368754595.

It can be divided in two parts, 6051455 and 51, that added together give a palindrome (6051506).

The spelling of 605145551 in words is "six hundred five million, one hundred forty-five thousand, five hundred fifty-one".