455605257 has 16 divisors (see below), whose sum is σ = 621017280. Its totient is φ = 297019392.

The previous prime is 455605247. The next prime is 455605259. The reversal of 455605257 is 752506554.

It is not a de Polignac number, because 455605257 - 2⁶ = 455605193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (455605259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27493 + ... + 40829.

It is an arithmetic number, because the mean of its divisors is an integer number (38813580).

Almost surely, 2^455605257 is an apocalyptic number.

It is an amenable number.

455605257 is a deficient number, since it is larger than the sum of its proper divisors (165412023).

455605257 is a wasteful number, since it uses less digits than its factorization.

455605257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13592.

The product of its (nonzero) digits is 210000, while the sum is 39.

The square root of 455605257 is about 21344.9117355870. The cubic root of 455605257 is about 769.4780614225.

The spelling of 455605257 in words is "four hundred fifty-five million, six hundred five thousand, two hundred fifty-seven".