51996641 has 8 divisors (see below), whose sum is σ = 54585600. Its totient is φ = 49464720.

The previous prime is 51996599. The next prime is 51996647. The reversal of 51996641 is 14669915.

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 51996641 - 2⁶ = 51996577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51996647) 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, 12386 + ... + 16043.

It is an arithmetic number, because the mean of its divisors is an integer number (6823200).

Almost surely, 2^51996641 is an apocalyptic number.

It is an amenable number.

51996641 is a deficient number, since it is larger than the sum of its proper divisors (2588959).

51996641 is a wasteful number, since it uses less digits than its factorization.

51996641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28519.

The product of its digits is 58320, while the sum is 41.

The square root of 51996641 is about 7210.8696424218. The cubic root of 51996641 is about 373.2430786465.

The spelling of 51996641 in words is "fifty-one million, nine hundred ninety-six thousand, six hundred forty-one".