52123861 has 8 divisors (see below), whose sum is σ = 53741880. Its totient is φ = 50516928.

The previous prime is 52123831. The next prime is 52123889. The reversal of 52123861 is 16832125.

It can be written as a sum of positive squares in 4 ways, for example, as 14485636 + 37638225 = 3806^2 + 6135^2 .

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 52123861 - 2⁷ = 52123733 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 (52123801) 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, 7335 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (6717735).

Almost surely, 2^52123861 is an apocalyptic number.

It is an amenable number.

52123861 is a deficient number, since it is larger than the sum of its proper divisors (1618019).

52123861 is a wasteful number, since it uses less digits than its factorization.

52123861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its digits is 2880, while the sum is 28.

The square root of 52123861 is about 7219.6856579771. The cubic root of 52123861 is about 373.5472349010.

Adding to 52123861 its reverse (16832125), we get a palindrome (68955986).

The spelling of 52123861 in words is "fifty-two million, one hundred twenty-three thousand, eight hundred sixty-one".