545634257 has 24 divisors (see below), whose sum is σ = 644656320. Its totient is φ = 460430880.

The previous prime is 545634241. The next prime is 545634283. The reversal of 545634257 is 752436545.

It is not a de Polignac number, because 545634257 - 2⁴ = 545634241 is a prime.

It is a super-3 number, since 3×545634257³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (545634757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1071719 + ... + 1072227.

It is an arithmetic number, because the mean of its divisors is an integer number (26860680).

Almost surely, 2^545634257 is an apocalyptic number.

It is an amenable number.

545634257 is a deficient number, since it is larger than the sum of its proper divisors (99022063).

545634257 is a wasteful number, since it uses less digits than its factorization.

545634257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 814 counting only the distinct ones).

The product of its digits is 504000, while the sum is 41.

The square root of 545634257 is about 23358.8154023272. The cubic root of 545634257 is about 817.1476631346.

The spelling of 545634257 in words is "five hundred forty-five million, six hundred thirty-four thousand, two hundred fifty-seven".