51072459 has 8 divisors (see below), whose sum is σ = 68477760. Its totient is φ = 33857736.

The previous prime is 51072449. The next prime is 51072467. The reversal of 51072459 is 95427015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51072459 - 2⁷ = 51072331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51072449) 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, 47017 + ... + 48090.

It is an arithmetic number, because the mean of its divisors is an integer number (8559720).

Almost surely, 2^51072459 is an apocalyptic number.

51072459 is a deficient number, since it is larger than the sum of its proper divisors (17405301).

51072459 is a wasteful number, since it uses less digits than its factorization.

51072459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95289.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 51072459 is about 7146.4997726160. The cubic root of 51072459 is about 371.0185206884.

The spelling of 51072459 in words is "fifty-one million, seventy-two thousand, four hundred fifty-nine".