52420511 has 16 divisors (see below), whose sum is σ = 62200320. Its totient is φ = 43549920.

The previous prime is 52420493. The next prime is 52420541. The reversal of 52420511 is 11502425.

It is a cyclic number.

It is not a de Polignac number, because 52420511 - 2¹⁴ = 52404127 is a prime.

It is a super-2 number, since 2×52420511² = 5495819947002242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52420541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12950 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (3887520).

Almost surely, 2^52420511 is an apocalyptic number.

52420511 is a deficient number, since it is larger than the sum of its proper divisors (9779809).

52420511 is a wasteful number, since it uses less digits than its factorization.

52420511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 52420511 is about 7240.2010331206. The cubic root of 52420511 is about 374.2545451816.

Adding to 52420511 its reverse (11502425), we get a palindrome (63922936).

The spelling of 52420511 in words is "fifty-two million, four hundred twenty thousand, five hundred eleven".