52775520 has 192 divisors, whose sum is σ = 193052160. Its totient is φ = 11870208.

The previous prime is 52775479. The next prime is 52775533. The reversal of 52775520 is 2557725.

It is a super-2 number, since 2×52775520² = 5570511022540800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379611 + ... + 379749.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^52775520 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 52775520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96526080).

52775520 is an abundant number, since it is smaller than the sum of its proper divisors (140276640).

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

52775520 is a wasteful number, since it uses less digits than its factorization.

52775520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 52775520 is about 7264.6761799821. The cubic root of 52775520 is about 375.0975035349.

The spelling of 52775520 in words is "fifty-two million, seven hundred seventy-five thousand, five hundred twenty".