453985521 has 16 divisors (see below), whose sum is σ = 661065408. Its totient is φ = 274841600.

The previous prime is 453985513. The next prime is 453985547. The reversal of 453985521 is 125589354.

It is not a de Polignac number, because 453985521 - 2³ = 453985513 is a prime.

It is a super-2 number, since 2×453985521² = 412205706555282882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (453985591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25201 + ... + 39281.

It is an arithmetic number, because the mean of its divisors is an integer number (41316588).

Almost surely, 2^453985521 is an apocalyptic number.

It is an amenable number.

453985521 is a deficient number, since it is larger than the sum of its proper divisors (207079887).

453985521 is a wasteful number, since it uses less digits than its factorization.

453985521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15072.

The product of its digits is 216000, while the sum is 42.

The square root of 453985521 is about 21306.9359833834. The cubic root of 453985521 is about 768.5651137904.

The spelling of 453985521 in words is "four hundred fifty-three million, nine hundred eighty-five thousand, five hundred twenty-one".