51294039 has 8 divisors (see below), whose sum is σ = 68500992. Its totient is φ = 34141560.

The previous prime is 51294031. The next prime is 51294059. The reversal of 51294039 is 93049215.

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

It is not a de Polignac number, because 51294039 - 2³ = 51294031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51294031) 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, 11367 + ... + 15224.

It is an arithmetic number, because the mean of its divisors is an integer number (8562624).

Almost surely, 2^51294039 is an apocalyptic number.

51294039 is a deficient number, since it is larger than the sum of its proper divisors (17206953).

51294039 is a wasteful number, since it uses less digits than its factorization.

51294039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27237.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 51294039 is about 7161.9856883409. The cubic root of 51294039 is about 371.5543063822.

The spelling of 51294039 in words is "fifty-one million, two hundred ninety-four thousand, thirty-nine".