51756485 has 8 divisors (see below), whose sum is σ = 67754016. Its totient is φ = 37641040.

The previous prime is 51756469. The next prime is 51756499. The reversal of 51756485 is 58465715.

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

It is not a de Polignac number, because 51756485 - 2⁴ = 51756469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470459 + ... + 470568.

It is an arithmetic number, because the mean of its divisors is an integer number (8469252).

Almost surely, 2^51756485 is an apocalyptic number.

51756485 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51756485 is a deficient number, since it is larger than the sum of its proper divisors (15997531).

51756485 is a wasteful number, since it uses less digits than its factorization.

51756485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941043.

The product of its digits is 168000, while the sum is 41.

The square root of 51756485 is about 7194.1980095074. The cubic root of 51756485 is about 372.6675612078.

The spelling of 51756485 in words is "fifty-one million, seven hundred fifty-six thousand, four hundred eighty-five".