52775021 has 8 divisors (see below), whose sum is σ = 60178104. Its totient is φ = 45849600.

The previous prime is 52774979. The next prime is 52775069. The reversal of 52775021 is 12057725.

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 52722121 = 230^2 + 7261^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52775021 - 2¹⁴ = 52758637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52775071) 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, 119180 + ... + 119621.

It is an arithmetic number, because the mean of its divisors is an integer number (7522263).

Almost surely, 2^52775021 is an apocalyptic number.

It is an amenable number.

52775021 is a deficient number, since it is larger than the sum of its proper divisors (7403083).

52775021 is a wasteful number, since it uses less digits than its factorization.

52775021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238831.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 52775021 is about 7264.6418356310. The cubic root of 52775021 is about 375.0963213312.

The spelling of 52775021 in words is "fifty-two million, seven hundred seventy-five thousand, twenty-one".