51082493 has 8 divisors (see below), whose sum is σ = 63687360. Its totient is φ = 39804480.

The previous prime is 51082489. The next prime is 51082511. The reversal of 51082493 is 39428015.

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 51082493 - 2² = 51082489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51082403) 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, 331628 + ... + 331781.

It is an arithmetic number, because the mean of its divisors is an integer number (7960920).

Almost surely, 2^51082493 is an apocalyptic number.

It is an amenable number.

51082493 is a deficient number, since it is larger than the sum of its proper divisors (12604867).

51082493 is a wasteful number, since it uses less digits than its factorization.

51082493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663427.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51082493 is about 7147.2017601296. The cubic root of 51082493 is about 371.0428166014.

The spelling of 51082493 in words is "fifty-one million, eighty-two thousand, four hundred ninety-three".