52651986 has 8 divisors (see below), whose sum is σ = 105303984. Its totient is φ = 17550660.

The previous prime is 52651961. The next prime is 52652003. The reversal of 52651986 is 68915625.

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

52651986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4387660 + ... + 4387671.

It is an arithmetic number, because the mean of its divisors is an integer number (13162998).

Almost surely, 2^52651986 is an apocalyptic number.

52651986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52651986 is a wasteful number, since it uses less digits than its factorization.

52651986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8775336.

The product of its digits is 129600, while the sum is 42.

The square root of 52651986 is about 7256.1688238353. The cubic root of 52651986 is about 374.8046057628.

The spelling of 52651986 in words is "fifty-two million, six hundred fifty-one thousand, nine hundred eighty-six".