52111501 has 4 divisors (see below), whose sum is σ = 56120092. Its totient is φ = 48102912.

The previous prime is 52111453. The next prime is 52111513. The reversal of 52111501 is 10511125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23755876 + 28355625 = 4874^2 + 5325^2 .

It is not a de Polignac number, because 52111501 - 2¹³ = 52103309 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 (52111531) 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, 2004276 + ... + 2004301.

It is an arithmetic number, because the mean of its divisors is an integer number (14030023).

Almost surely, 2^52111501 is an apocalyptic number.

It is an amenable number.

52111501 is a deficient number, since it is larger than the sum of its proper divisors (4008591).

52111501 is a wasteful number, since it uses less digits than its factorization.

52111501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008590.

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

The square root of 52111501 is about 7218.8296142796. The cubic root of 52111501 is about 373.5177064616.

Adding to 52111501 its reverse (10511125), we get a palindrome (62622626).

The spelling of 52111501 in words is "fifty-two million, one hundred eleven thousand, five hundred one".