53152520 has 32 divisors (see below), whose sum is σ = 120300120. Its totient is φ = 21135360.

The previous prime is 53152499. The next prime is 53152529. The reversal of 53152520 is 2525135.

It can be written as a sum of positive squares in 4 ways, for example, as 52388644 + 763876 = 7238^2 + 874^2 .

It is not an unprimeable number, because it can be changed into a prime (53152529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3080 + ... + 10760.

Almost surely, 2^53152520 is an apocalyptic number.

It is an amenable number.

53152520 is an abundant number, since it is smaller than the sum of its proper divisors (67147600).

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

53152520 is a wasteful number, since it uses less digits than its factorization.

53152520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865 (or 7861 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 53152520 is about 7290.5774805567. The cubic root of 53152520 is about 375.9885502776.

Adding to 53152520 its reverse (2525135), we get a palindrome (55677655).

The spelling of 53152520 in words is "fifty-three million, one hundred fifty-two thousand, five hundred twenty".