53011861 has 8 divisors (see below), whose sum is σ = 62222720. Its totient is φ = 44210448.

The previous prime is 53011853. The next prime is 53011877. The reversal of 53011861 is 16811035.

53011861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53011861 - 2³ = 53011853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53011801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102081 + ... + 102598.

It is an arithmetic number, because the mean of its divisors is an integer number (7777840).

Almost surely, 2^53011861 is an apocalyptic number.

It is an amenable number.

53011861 is a deficient number, since it is larger than the sum of its proper divisors (9210859).

53011861 is a wasteful number, since it uses less digits than its factorization.

53011861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204723.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 53011861 is about 7280.9244605338. The cubic root of 53011861 is about 375.6565942788.

Adding to 53011861 its reverse (16811035), we get a palindrome (69822896).

The spelling of 53011861 in words is "fifty-three million, eleven thousand, eight hundred sixty-one".