2585472491 has 8 divisors (see below), whose sum is σ = 3017694720. Its totient is φ = 2168967528.

The previous prime is 2585472469. The next prime is 2585472497. The reversal of 2585472491 is 1942745852.

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

It is not a de Polignac number, because 2585472491 - 2⁶ = 2585472427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585472497) 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, 3928961 + ... + 3929618.

It is an arithmetic number, because the mean of its divisors is an integer number (377211840).

Almost surely, 2^2585472491 is an apocalyptic number.

2585472491 is a deficient number, since it is larger than the sum of its proper divisors (432222229).

2585472491 is an equidigital number, since it uses as much as digits as its factorization.

2585472491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858633.

The product of its digits is 806400, while the sum is 47.

The square root of 2585472491 is about 50847.5416416566. The cubic root of 2585472491 is about 1372.5030148695.

The spelling of 2585472491 in words is "two billion, five hundred eighty-five million, four hundred seventy-two thousand, four hundred ninety-one".