52569021 has 8 divisors (see below), whose sum is σ = 70168384. Its totient is φ = 35007840.

The previous prime is 52568959. The next prime is 52569031. The reversal of 52569021 is 12096525.

It is a happy number.

52569021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52569021 - 2¹⁴ = 52552637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52569021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52569031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6160 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (8771048).

Almost surely, 2^52569021 is an apocalyptic number.

It is an amenable number.

52569021 is a deficient number, since it is larger than the sum of its proper divisors (17599363).

52569021 is a wasteful number, since it uses less digits than its factorization.

52569021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19091.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 52569021 is about 7250.4497101904. The cubic root of 52569021 is about 374.6076393960.

It can be divided in two parts, 5256902 and 1, that added together give a triangular number (5256903 = T₃₂₄₂).

The spelling of 52569021 in words is "fifty-two million, five hundred sixty-nine thousand, twenty-one".