52920168 has 128 divisors (see below), whose sum is σ = 162432000. Its totient is φ = 14031360.

The previous prime is 52920163. The next prime is 52920169. The reversal of 52920168 is 86102925.

It is a super-2 number, since 2×52920168² = 5601088362296448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52920163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188188 + ... + 188468.

It is an arithmetic number, because the mean of its divisors is an integer number (1269000).

Almost surely, 2^52920168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52920168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81216000).

52920168 is an abundant number, since it is smaller than the sum of its proper divisors (109511832).

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

52920168 is a wasteful number, since it uses less digits than its factorization.

52920168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 52920168 is about 7274.6249387855. The cubic root of 52920168 is about 375.4398820306.

The spelling of 52920168 in words is "fifty-two million, nine hundred twenty thousand, one hundred sixty-eight".