52720847 has 4 divisors (see below), whose sum is σ = 52827000. Its totient is φ = 52614696.

The previous prime is 52720831. The next prime is 52720867. The reversal of 52720847 is 74802725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52720847 - 2⁴ = 52720831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52720867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52328 + ... + 53325.

It is an arithmetic number, because the mean of its divisors is an integer number (13206750).

Almost surely, 2^52720847 is an apocalyptic number.

52720847 is a deficient number, since it is larger than the sum of its proper divisors (106153).

52720847 is a wasteful number, since it uses less digits than its factorization.

52720847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106152.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 52720847 is about 7260.9122705071. The cubic root of 52720847 is about 374.9679308872.

The spelling of 52720847 in words is "fifty-two million, seven hundred twenty thousand, eight hundred forty-seven".