605435257 has 4 divisors (see below), whose sum is σ = 691926016. Its totient is φ = 518944500.

The previous prime is 605435219. The next prime is 605435267. The reversal of 605435257 is 752534506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 605435257 - 2¹⁵ = 605402489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605435267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43245369 + ... + 43245382.

It is an arithmetic number, because the mean of its divisors is an integer number (172981504).

Almost surely, 2^605435257 is an apocalyptic number.

It is an amenable number.

605435257 is a deficient number, since it is larger than the sum of its proper divisors (86490759).

605435257 is an equidigital number, since it uses as much as digits as its factorization.

605435257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86490758.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 605435257 is about 24605.5940184341. The cubic root of 605435257 is about 845.9718319307.

The spelling of 605435257 in words is "six hundred five million, four hundred thirty-five thousand, two hundred fifty-seven".