53071861 has 8 divisors (see below), whose sum is σ = 53944704. Its totient is φ = 52202640.

The previous prime is 53071859. The next prime is 53071873. The reversal of 53071861 is 16817035.

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 53071861 - 2¹ = 53071859 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 (53071661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54400 + ... + 55366.

It is an arithmetic number, because the mean of its divisors is an integer number (6743088).

Almost surely, 2^53071861 is an apocalyptic number.

It is an amenable number.

53071861 is a deficient number, since it is larger than the sum of its proper divisors (872843).

53071861 is an equidigital number, since it uses as much as digits as its factorization.

53071861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 53071861 is about 7285.0436512076. The cubic root of 53071861 is about 375.7982663314.

Adding to 53071861 its reverse (16817035), we get a palindrome (69888896).

The spelling of 53071861 in words is "fifty-three million, seventy-one thousand, eight hundred sixty-one".