52164630 has 96 divisors (see below), whose sum is σ = 160063488. Its totient is φ = 11534400.

The previous prime is 52164617. The next prime is 52164631. The reversal of 52164630 is 3646125.

52164630 is a `hidden beast` number, since 5 + 21 + 6 + 4 + 630 = 666.

It is a super-2 number, since 2×52164630² = 5442297246073800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52164594 and 52164603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52164631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18195 + ... + 20865.

It is an arithmetic number, because the mean of its divisors is an integer number (1667328).

Almost surely, 2^52164630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52164630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80031744).

52164630 is an abundant number, since it is smaller than the sum of its proper divisors (107898858).

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

52164630 is a wasteful number, since it uses less digits than its factorization.

52164630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 52164630 is about 7222.5085669731. The cubic root of 52164630 is about 373.6446002799.

The spelling of 52164630 in words is "fifty-two million, one hundred sixty-four thousand, six hundred thirty".