52011511 has 4 divisors (see below), whose sum is σ = 52596000. Its totient is φ = 51427024.

The previous prime is 52011503. The next prime is 52011539. The reversal of 52011511 is 11511025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52011511 - 2³ = 52011503 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 (52011541) 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, 292111 + ... + 292288.

It is an arithmetic number, because the mean of its divisors is an integer number (13149000).

Almost surely, 2^52011511 is an apocalyptic number.

52011511 is a deficient number, since it is larger than the sum of its proper divisors (584489).

52011511 is an equidigital number, since it uses as much as digits as its factorization.

52011511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584488.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 52011511 is about 7211.9006510073. The cubic root of 52011511 is about 373.2786552753.

Adding to 52011511 its reverse (11511025), we get a palindrome (63522536).

The spelling of 52011511 in words is "fifty-two million, eleven thousand, five hundred eleven".