52787819 has 8 divisors (see below), whose sum is σ = 60553728. Its totient is φ = 45078120.

The previous prime is 52787807. The next prime is 52787821. The reversal of 52787819 is 91878725.

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 52787819 - 2⁴ = 52787803 is a prime.

It is a super-2 number, since 2×52787819² = 5573107669553522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52787849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12017 + ... + 15810.

It is an arithmetic number, because the mean of its divisors is an integer number (7569216).

Almost surely, 2^52787819 is an apocalyptic number.

52787819 is a deficient number, since it is larger than the sum of its proper divisors (7765909).

52787819 is a wasteful number, since it uses less digits than its factorization.

52787819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28105.

The product of its digits is 282240, while the sum is 47.

The square root of 52787819 is about 7265.5226240099. The cubic root of 52787819 is about 375.1266393026.

The spelling of 52787819 in words is "fifty-two million, seven hundred eighty-seven thousand, eight hundred nineteen".