53545730 has 64 divisors (see below), whose sum is σ = 114566400. Its totient is φ = 18006912.

The previous prime is 53545721. The next prime is 53545747. The reversal of 53545730 is 3754535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229694 + ... + 229926.

It is an arithmetic number, because the mean of its divisors is an integer number (1790100).

Almost surely, 2^53545730 is an apocalyptic number.

53545730 is an abundant number, since it is smaller than the sum of its proper divisors (61020670).

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

53545730 is a wasteful number, since it uses less digits than its factorization.

53545730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 53545730 is about 7317.4947898854. The cubic root of 53545730 is about 376.9134319876.

The spelling of 53545730 in words is "fifty-three million, five hundred forty-five thousand, seven hundred thirty".