53190812 has 24 divisors (see below), whose sum is σ = 97754496. Its totient is φ = 25275888.

The previous prime is 53190791. The next prime is 53190911. The reversal of 53190812 is 21809135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13223 + ... + 16769.

It is an arithmetic number, because the mean of its divisors is an integer number (4073104).

Almost surely, 2^53190812 is an apocalyptic number.

It is an amenable number.

53190812 is a deficient number, since it is larger than the sum of its proper divisors (44563684).

53190812 is a wasteful number, since it uses less digits than its factorization.

53190812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737 (or 3735 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 53190812 is about 7293.2031371682. The cubic root of 53190812 is about 376.0788181682.

Adding to 53190812 its reverse (21809135), we get a palindrome (74999947).

The spelling of 53190812 in words is "fifty-three million, one hundred ninety thousand, eight hundred twelve".