2585055021 has 8 divisors (see below), whose sum is σ = 3447311424. Its totient is φ = 1723084320.

The previous prime is 2585055017. The next prime is 2585055059. The reversal of 2585055021 is 1205505852.

2585055021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2585055021 - 2² = 2585055017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585055091) 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, 49336 + ... + 87201.

It is an arithmetic number, because the mean of its divisors is an integer number (430913928).

Almost surely, 2^2585055021 is an apocalyptic number.

It is an amenable number.

2585055021 is a deficient number, since it is larger than the sum of its proper divisors (862256403).

2585055021 is a wasteful number, since it uses less digits than its factorization.

2585055021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142851.

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 2585055021 is about 50843.4363610486. The cubic root of 2585055021 is about 1372.4291393106.

The spelling of 2585055021 in words is "two billion, five hundred eighty-five million, fifty-five thousand, twenty-one".