51083861 has 8 divisors (see below), whose sum is σ = 54851904. Its totient is φ = 47400640.

The previous prime is 51083821. The next prime is 51083887. The reversal of 51083861 is 16838015.

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 51083861 - 2¹⁴ = 51067477 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 (51083821) 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, 19955 + ... + 22368.

It is an arithmetic number, because the mean of its divisors is an integer number (6856488).

Almost surely, 2^51083861 is an apocalyptic number.

It is an amenable number.

51083861 is a deficient number, since it is larger than the sum of its proper divisors (3768043).

51083861 is a wasteful number, since it uses less digits than its factorization.

51083861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42411.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 51083861 is about 7147.2974612786. The cubic root of 51083861 is about 371.0461287736.

The spelling of 51083861 in words is "fifty-one million, eighty-three thousand, eight hundred sixty-one".