7485565853 has 8 divisors (see below), whose sum is σ = 7554291000. Its totient is φ = 7417087488.

The previous prime is 7485565819. The next prime is 7485565897. The reversal of 7485565853 is 3585655847.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2416410649 + 5069155204 = 49157^2 + 71198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7485565853 - 2²⁰ = 7484517277 is a prime.

It is a super-2 number, since 2×7485565853² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485565253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 122357.

It is an arithmetic number, because the mean of its divisors is an integer number (944286375).

Almost surely, 2^7485565853 is an apocalyptic number.

It is an amenable number.

7485565853 is a deficient number, since it is larger than the sum of its proper divisors (68725147).

7485565853 is a wasteful number, since it uses less digits than its factorization.

7485565853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123391.

The product of its digits is 20160000, while the sum is 56.

The square root of 7485565853 is about 86519.1646573174. The cubic root of 7485565853 is about 1956.1772858164.

The spelling of 7485565853 in words is "seven billion, four hundred eighty-five million, five hundred sixty-five thousand, eight hundred fifty-three".