52720347 has 16 divisors (see below), whose sum is σ = 75882240. Its totient is φ = 32458272.

The previous prime is 52720313. The next prime is 52720361. The reversal of 52720347 is 74302725.

It is not a de Polignac number, because 52720347 - 2¹¹ = 52718299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52720387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11173 + ... + 15174.

It is an arithmetic number, because the mean of its divisors is an integer number (4742640).

Almost surely, 2^52720347 is an apocalyptic number.

52720347 is a deficient number, since it is larger than the sum of its proper divisors (23161893).

52720347 is a wasteful number, since it uses less digits than its factorization.

52720347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26402.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 52720347 is about 7260.8778394902. The cubic root of 52720347 is about 374.9667454956.

The spelling of 52720347 in words is "fifty-two million, seven hundred twenty thousand, three hundred forty-seven".