51744019 has 8 divisors (see below), whose sum is σ = 53893728. Its totient is φ = 49633920.

The previous prime is 51743999. The next prime is 51744029. The reversal of 51744019 is 91044715.

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 51744019 - 2⁵ = 51743987 is a prime.

It is a super-2 number, since 2×51744019² = 5354887004544722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51744029) 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, 7222 + ... + 12475.

It is an arithmetic number, because the mean of its divisors is an integer number (6736716).

Almost surely, 2^51744019 is an apocalyptic number.

51744019 is a deficient number, since it is larger than the sum of its proper divisors (2149709).

51744019 is a wasteful number, since it uses less digits than its factorization.

51744019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19805.

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

The square root of 51744019 is about 7193.3315647202. The cubic root of 51744019 is about 372.6376387298.

The spelling of 51744019 in words is "fifty-one million, seven hundred forty-four thousand, nineteen".