52251787 has 12 divisors (see below), whose sum is σ = 60933000. Its totient is φ = 44676576.

The previous prime is 52251779. The next prime is 52251803. The reversal of 52251787 is 78715225.

52251787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52251787 - 2³ = 52251779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52251187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23383 + ... + 25519.

It is an arithmetic number, because the mean of its divisors is an integer number (5077750).

Almost surely, 2^52251787 is an apocalyptic number.

52251787 is a deficient number, since it is larger than the sum of its proper divisors (8681213).

52251787 is a wasteful number, since it uses less digits than its factorization.

52251787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650 (or 2643 counting only the distinct ones).

The product of its digits is 39200, while the sum is 37.

The square root of 52251787 is about 7228.5397557183. The cubic root of 52251787 is about 373.8525804267.

The spelling of 52251787 in words is "fifty-two million, two hundred fifty-one thousand, seven hundred eighty-seven".