52820375 has 8 divisors (see below), whose sum is σ = 65919984. Its totient is φ = 42256200.

The previous prime is 52820363. The next prime is 52820387. The reversal of 52820375 is 57302825.

It is an interprime number because it is at equal distance from previous prime (52820363) and next prime (52820387).

It is a de Polignac number, because none of the positive numbers 2^k-52820375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211157 + ... + 211406.

It is an arithmetic number, because the mean of its divisors is an integer number (8239998).

Almost surely, 2^52820375 is an apocalyptic number.

52820375 is a deficient number, since it is larger than the sum of its proper divisors (13099609).

52820375 is an equidigital number, since it uses as much as digits as its factorization.

52820375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422578 (or 422568 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 52820375 is about 7267.7627231494. The cubic root of 52820375 is about 375.2037411373.

The spelling of 52820375 in words is "fifty-two million, eight hundred twenty thousand, three hundred seventy-five".