53320146 has 32 divisors (see below), whose sum is σ = 116640000. Its totient is φ = 16115280.

The previous prime is 53320139. The next prime is 53320147. The reversal of 53320146 is 64102335.

It is a happy number.

It is a super-2 number, since 2×53320146² = 5686075938922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53320147) 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, 32125 + ... + 33743.

It is an arithmetic number, because the mean of its divisors is an integer number (3645000).

Almost surely, 2^53320146 is an apocalyptic number.

53320146 is an abundant number, since it is smaller than the sum of its proper divisors (63319854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53320146 is a wasteful number, since it uses less digits than its factorization.

53320146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53320146 is about 7302.0645025910. The cubic root of 53320146 is about 376.3833846055.

The spelling of 53320146 in words is "fifty-three million, three hundred twenty thousand, one hundred forty-six".