8545820253 has 32 divisors (see below), whose sum is σ = 12597586560. Its totient is φ = 5128704000.

The previous prime is 8545820243. The next prime is 8545820273. The reversal of 8545820253 is 3520285458.

It is a happy number.

It is not a de Polignac number, because 8545820253 - 2⁴ = 8545820237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8545820233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131253 + ... + 185253.

It is an arithmetic number, because the mean of its divisors is an integer number (393674580).

Almost surely, 2^8545820253 is an apocalyptic number.

It is an amenable number.

8545820253 is a deficient number, since it is larger than the sum of its proper divisors (4051766307).

8545820253 is a wasteful number, since it uses less digits than its factorization.

8545820253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54157.

The product of its (nonzero) digits is 384000, while the sum is 42.

The square root of 8545820253 is about 92443.6057983461. The cubic root of 8545820253 is about 2044.4880885406.

The spelling of 8545820253 in words is "eight billion, five hundred forty-five million, eight hundred twenty thousand, two hundred fifty-three".