53123520 has 56 divisors (see below), whose sum is σ = 168670224. Its totient is φ = 14166016.

The previous prime is 53123501. The next prime is 53123561. The reversal of 53123520 is 2532135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26709 + ... + 28628.

Almost surely, 2^53123520 is an apocalyptic number.

It is an amenable number.

53123520 is an abundant number, since it is smaller than the sum of its proper divisors (115546704).

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

53123520 is a wasteful number, since it uses less digits than its factorization.

53123520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55357 (or 55347 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 53123520 is about 7288.5883406871. The cubic root of 53123520 is about 375.9201580886.

Adding to 53123520 its reverse (2532135), we get a palindrome (55655655).

The spelling of 53123520 in words is "fifty-three million, one hundred twenty-three thousand, five hundred twenty".