52020869 has 4 divisors (see below), whose sum is σ = 53127744. Its totient is φ = 50913996.

The previous prime is 52020827. The next prime is 52020887. The reversal of 52020869 is 96802025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52020869 - 2²⁴ = 35243653 is a prime.

It is a super-2 number, since 2×52020869² = 5412341623030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52020169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553367 + ... + 553460.

It is an arithmetic number, because the mean of its divisors is an integer number (13281936).

Almost surely, 2^52020869 is an apocalyptic number.

It is an amenable number.

52020869 is a deficient number, since it is larger than the sum of its proper divisors (1106875).

52020869 is a wasteful number, since it uses less digits than its factorization.

52020869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106874.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 52020869 is about 7212.5494105760. The cubic root of 52020869 is about 373.3010409108.

The spelling of 52020869 in words is "fifty-two million, twenty thousand, eight hundred sixty-nine".