53130520 has 32 divisors (see below), whose sum is σ = 122778000. Its totient is φ = 20677248.

The previous prime is 53130509. The next prime is 53130521. The reversal of 53130520 is 2503135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53130521) 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, 16470 + ... + 19429.

Almost surely, 2^53130520 is an apocalyptic number.

It is an amenable number.

53130520 is an abundant number, since it is smaller than the sum of its proper divisors (69647480).

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

53130520 is a wasteful number, since it uses less digits than its factorization.

53130520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35947 (or 35943 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 53130520 is about 7289.0685275967. The cubic root of 53130520 is about 375.9366688265.

Adding to 53130520 its reverse (2503135), we get a palindrome (55633655).

The spelling of 53130520 in words is "fifty-three million, one hundred thirty thousand, five hundred twenty".