51627985 has 8 divisors (see below), whose sum is σ = 64647360. Its totient is φ = 39506544.

The previous prime is 51627977. The next prime is 51627991. The reversal of 51627985 is 58972615.

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 51627985 - 2³ = 51627977 is a prime.

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, 224355 + ... + 224584.

It is an arithmetic number, because the mean of its divisors is an integer number (8080920).

Almost surely, 2^51627985 is an apocalyptic number.

It is an amenable number.

51627985 is a deficient number, since it is larger than the sum of its proper divisors (13019375).

51627985 is a wasteful number, since it uses less digits than its factorization.

51627985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448967.

The product of its digits is 151200, while the sum is 43.

The square root of 51627985 is about 7185.2616514641. The cubic root of 51627985 is about 372.3588883398.

The spelling of 51627985 in words is "fifty-one million, six hundred twenty-seven thousand, nine hundred eighty-five".