52571520 has 96 divisors (see below), whose sum is σ = 181555920. Its totient is φ = 14017536.

The previous prime is 52571507. The next prime is 52571527. The reversal of 52571520 is 2517525.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×52571520² = 5527529430220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52571527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1197 + ... + 10323.

Almost surely, 2^52571520 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 52571520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90777960).

52571520 is an abundant number, since it is smaller than the sum of its proper divisors (128984400).

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

52571520 is a wasteful number, since it uses less digits than its factorization.

52571520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152 (or 9137 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52571520 is about 7250.6220422802. The cubic root of 52571520 is about 374.6135752726.

The spelling of 52571520 in words is "fifty-two million, five hundred seventy-one thousand, five hundred twenty".