52821499 has 16 divisors (see below), whose sum is σ = 58212000. Its totient is φ = 47706624.

The previous prime is 52821493. The next prime is 52821521. The reversal of 52821499 is 99412825.

It is not a de Polignac number, because 52821499 - 2³ = 52821491 is a prime.

It is a super-2 number, since 2×52821499² = 5580221513214002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52821491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151177 + ... + 151525.

It is an arithmetic number, because the mean of its divisors is an integer number (3638250).

Almost surely, 2^52821499 is an apocalyptic number.

52821499 is a deficient number, since it is larger than the sum of its proper divisors (5390501).

52821499 is a wasteful number, since it uses less digits than its factorization.

52821499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702.

The product of its digits is 51840, while the sum is 40.

The square root of 52821499 is about 7267.8400505240. The cubic root of 52821499 is about 375.2064025220.

The spelling of 52821499 in words is "fifty-two million, eight hundred twenty-one thousand, four hundred ninety-nine".