52820146 has 8 divisors (see below), whose sum is σ = 79279920. Its totient is φ = 26393508.

The previous prime is 52820143. The next prime is 52820149. The reversal of 52820146 is 64102825.

It is an interprime number because it is at equal distance from previous prime (52820143) and next prime (52820149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×52820146² = 5579935646922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52820143) 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, 3816 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (9909990).

Almost surely, 2^52820146 is an apocalyptic number.

52820146 is a deficient number, since it is larger than the sum of its proper divisors (26459774).

52820146 is a wasteful number, since it uses less digits than its factorization.

52820146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16568.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 52820146 is about 7267.7469686279. The cubic root of 52820146 is about 375.2031989110.

The spelling of 52820146 in words is "fifty-two million, eight hundred twenty thousand, one hundred forty-six".