51172486 has 8 divisors (see below), whose sum is σ = 76856040. Its totient is φ = 25553808.

The previous prime is 51172483. The next prime is 51172531. The reversal of 51172486 is 68427115.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51172481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14196 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (9607005).

Almost surely, 2^51172486 is an apocalyptic number.

51172486 is a deficient number, since it is larger than the sum of its proper divisors (25683554).

51172486 is a wasteful number, since it uses less digits than its factorization.

51172486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32438.

The product of its digits is 13440, while the sum is 34.

The square root of 51172486 is about 7153.4946704391. The cubic root of 51172486 is about 371.2605798358.

The spelling of 51172486 in words is "fifty-one million, one hundred seventy-two thousand, four hundred eighty-six".