545453253 has 12 divisors (see below), whose sum is σ = 788089068. Its totient is φ = 363537600.

The previous prime is 545453243. The next prime is 545453261. The reversal of 545453253 is 352354545.

It can be written as a sum of positive squares in 2 ways, for example, as 398122209 + 147331044 = 19953^2 + 12138^2 .

It is not a de Polignac number, because 545453253 - 2⁵ = 545453221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545453203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46153 + ... + 56753.

It is an arithmetic number, because the mean of its divisors is an integer number (65674089).

Almost surely, 2^545453253 is an apocalyptic number.

It is an amenable number.

545453253 is a deficient number, since it is larger than the sum of its proper divisors (242635815).

545453253 is a wasteful number, since it uses less digits than its factorization.

545453253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16324 (or 16321 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 545453253 is about 23354.9406550306. The cubic root of 545453253 is about 817.0572953031.

The spelling of 545453253 in words is "five hundred forty-five million, four hundred fifty-three thousand, two hundred fifty-three".