485512821 has 24 divisors (see below), whose sum is σ = 711288864. Its totient is φ = 319093920.

The previous prime is 485512817. The next prime is 485512823. The reversal of 485512821 is 128215584.

It is not a de Polignac number, because 485512821 - 2² = 485512817 is a prime.

It is a super-3 number, since 3×485512821³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485512823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217491 + ... + 219711.

It is an arithmetic number, because the mean of its divisors is an integer number (29637036).

Almost surely, 2^485512821 is an apocalyptic number.

It is an amenable number.

485512821 is a deficient number, since it is larger than the sum of its proper divisors (225776043).

485512821 is a wasteful number, since it uses less digits than its factorization.

485512821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561 (or 2558 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 485512821 is about 22034.3554704920. The cubic root of 485512821 is about 785.9596205195.

The spelling of 485512821 in words is "four hundred eighty-five million, five hundred twelve thousand, eight hundred twenty-one".