52209969 has 8 divisors (see below), whose sum is σ = 79558080. Its totient is φ = 29834256.

The previous prime is 52209953. The next prime is 52209973. The reversal of 52209969 is 96990225.

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

It is not a de Polignac number, because 52209969 - 2⁴ = 52209953 is a prime.

It is a super-2 number, since 2×52209969² = 5451761725961922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52209969.

It is not an unprimeable number, because it can be changed into a prime (52209569) 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, 1243074 + ... + 1243115.

It is an arithmetic number, because the mean of its divisors is an integer number (9944760).

Almost surely, 2^52209969 is an apocalyptic number.

It is an amenable number.

52209969 is a deficient number, since it is larger than the sum of its proper divisors (27348111).

52209969 is a wasteful number, since it uses less digits than its factorization.

52209969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486199.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 52209969 is about 7225.6466146636. The cubic root of 52209969 is about 373.7528202678.

It can be divided in two parts, 5220996 and 9, that multiplied together give a palindrome (46988964).

The spelling of 52209969 in words is "fifty-two million, two hundred nine thousand, nine hundred sixty-nine".