4253656545 has 16 divisors (see below), whose sum is σ = 7562056320. Its totient is φ = 2268616752.

The previous prime is 4253656489. The next prime is 4253656549. The reversal of 4253656545 is 5456563524.

4253656545 is a `hidden beast` number, since 4 + 2 + 53 + 6 + 56 + 545 = 666.

It is not a de Polignac number, because 4253656545 - 2¹⁰ = 4253655521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4253656545.

It is not an unprimeable number, because it can be changed into a prime (4253656549) 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, 15754149 + ... + 15754418.

It is an arithmetic number, because the mean of its divisors is an integer number (472628520).

Almost surely, 2^4253656545 is an apocalyptic number.

4253656545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4253656545 is a deficient number, since it is larger than the sum of its proper divisors (3308399775).

4253656545 is a wasteful number, since it uses less digits than its factorization.

4253656545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31508581 (or 31508575 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The square root of 4253656545 is about 65220.0624424724. The cubic root of 4253656545 is about 1620.2703081183.

The spelling of 4253656545 in words is "four billion, two hundred fifty-three million, six hundred fifty-six thousand, five hundred forty-five".