2585419828 has 12 divisors (see below), whose sum is σ = 4525691940. Its totient is φ = 1292364992.

The previous prime is 2585419787. The next prime is 2585419901. The reversal of 2585419828 is 8289145852.

It can be written as a sum of positive squares in 2 ways, for example, as 1762992144 + 822427684 = 41988^2 + 28678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68983 + ... + 99646.

It is an arithmetic number, because the mean of its divisors is an integer number (377140995).

Almost surely, 2^2585419828 is an apocalyptic number.

It is an amenable number.

2585419828 is a deficient number, since it is larger than the sum of its proper divisors (1940272112).

2585419828 is a wasteful number, since it uses less digits than its factorization.

2585419828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172466 (or 172464 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 52.

The square root of 2585419828 is about 50847.0237870419. The cubic root of 2585419828 is about 1372.4936960548.

The spelling of 2585419828 in words is "two billion, five hundred eighty-five million, four hundred nineteen thousand, eight hundred twenty-eight".