52069921 has 8 divisors (see below), whose sum is σ = 52969280. Its totient is φ = 51174288.

The previous prime is 52069889. The next prime is 52069931. The reversal of 52069921 is 12996025.

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 52069921 - 2⁵ = 52069889 is a prime.

It is a super-2 number, since 2×52069921² = 5422553345892482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52069931) 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, 48175 + ... + 49243.

It is an arithmetic number, because the mean of its divisors is an integer number (6621160).

Almost surely, 2^52069921 is an apocalyptic number.

It is an amenable number.

52069921 is a deficient number, since it is larger than the sum of its proper divisors (899359).

52069921 is a wasteful number, since it uses less digits than its factorization.

52069921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 52069921 is about 7215.9490713280. The cubic root of 52069921 is about 373.4183362107.

The spelling of 52069921 in words is "fifty-two million, sixty-nine thousand, nine hundred twenty-one".