52502821 has 8 divisors (see below), whose sum is σ = 60047744. Its totient is φ = 44969040.

The previous prime is 52502819. The next prime is 52502831. The reversal of 52502821 is 12820525.

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 52502821 - 2¹ = 52502819 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 (52502831) 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, 14416 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (7505968).

Almost surely, 2^52502821 is an apocalyptic number.

It is an amenable number.

52502821 is a deficient number, since it is larger than the sum of its proper divisors (7544923).

52502821 is a wasteful number, since it uses less digits than its factorization.

52502821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 52502821 is about 7245.8830379740. The cubic root of 52502821 is about 374.4503259421.

The spelling of 52502821 in words is "fifty-two million, five hundred two thousand, eight hundred twenty-one".