52826721 has 8 divisors (see below), whose sum is σ = 70489920. Its totient is φ = 35190672.

The previous prime is 52826717. The next prime is 52826723. The reversal of 52826721 is 12762825.

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

It is not a de Polignac number, because 52826721 - 2² = 52826717 is a prime.

It is a super-2 number, since 2×52826721² = 5581324903223682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52826723) 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, 1701 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (8811240).

Almost surely, 2^52826721 is an apocalyptic number.

It is an amenable number.

52826721 is a deficient number, since it is larger than the sum of its proper divisors (17663199).

52826721 is a wasteful number, since it uses less digits than its factorization.

52826721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13575.

The product of its digits is 13440, while the sum is 33.

The square root of 52826721 is about 7268.1992955615. The cubic root of 52826721 is about 375.2187665739.

The spelling of 52826721 in words is "fifty-two million, eight hundred twenty-six thousand, seven hundred twenty-one".