51925785 has 8 divisors (see below), whose sum is σ = 83081280. Its totient is φ = 27693744.

The previous prime is 51925781. The next prime is 51925801. The reversal of 51925785 is 58752915.

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

It is not a de Polignac number, because 51925785 - 2² = 51925781 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51925781) 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 7 ways as a sum of consecutive naturals, for example, 1730845 + ... + 1730874.

It is an arithmetic number, because the mean of its divisors is an integer number (10385160).

Almost surely, 2^51925785 is an apocalyptic number.

It is an amenable number.

51925785 is a deficient number, since it is larger than the sum of its proper divisors (31155495).

51925785 is a wasteful number, since it uses less digits than its factorization.

51925785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461727.

The product of its digits is 126000, while the sum is 42.

The square root of 51925785 is about 7205.9548291673. The cubic root of 51925785 is about 373.0734617053.

The spelling of 51925785 in words is "fifty-one million, nine hundred twenty-five thousand, seven hundred eighty-five".