452521215 has 64 divisors (see below), whose sum is σ = 856137600. Its totient is φ = 225994752.

The previous prime is 452521169. The next prime is 452521247. The reversal of 452521215 is 512125254.

It is not a de Polignac number, because 452521215 - 2⁶ = 452521151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 616989 + ... + 617721.

It is an arithmetic number, because the mean of its divisors is an integer number (13377150).

Almost surely, 2^452521215 is an apocalyptic number.

452521215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

452521215 is a deficient number, since it is larger than the sum of its proper divisors (403616385).

452521215 is a wasteful number, since it uses less digits than its factorization.

452521215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1027 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 452521215 is about 21272.5460394378. The cubic root of 452521215 is about 767.7379018960.

Adding to 452521215 its reverse (512125254), we get a palindrome (964646469).

The spelling of 452521215 in words is "four hundred fifty-two million, five hundred twenty-one thousand, two hundred fifteen".