53731530 has 48 divisors (see below), whose sum is σ = 140175360. Its totient is φ = 14279904.

The previous prime is 53731529. The next prime is 53731549. The reversal of 53731530 is 3513735.

53731530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53731530² = 5774154632281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53731494 and 53731503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31479 + ... + 33141.

It is an arithmetic number, because the mean of its divisors is an integer number (2920320).

Almost surely, 2^53731530 is an apocalyptic number.

53731530 is an abundant number, since it is smaller than the sum of its proper divisors (86443830).

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

53731530 is a wasteful number, since it uses less digits than its factorization.

53731530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 53731530 is about 7330.1793975318. The cubic root of 53731530 is about 377.3488832744.

It can be divided in two parts, 5373 and 1530, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 53731530 in words is "fifty-three million, seven hundred thirty-one thousand, five hundred thirty".