51793487 has 8 divisors (see below), whose sum is σ = 54595200. Its totient is φ = 48999384.

The previous prime is 51793481. The next prime is 51793499. The reversal of 51793487 is 78439715.

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 51793487 - 2²⁴ = 35016271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793481) 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, 16964 + ... + 19782.

It is an arithmetic number, because the mean of its divisors is an integer number (6824400).

Almost surely, 2^51793487 is an apocalyptic number.

51793487 is a deficient number, since it is larger than the sum of its proper divisors (2801713).

51793487 is a wasteful number, since it uses less digits than its factorization.

51793487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805.

The product of its digits is 211680, while the sum is 44.

The square root of 51793487 is about 7196.7692056922. The cubic root of 51793487 is about 372.7563498254.

The spelling of 51793487 in words is "fifty-one million, seven hundred ninety-three thousand, four hundred eighty-seven".