53730533 has 16 divisors (see below), whose sum is σ = 58406400. Its totient is φ = 49304640.

The previous prime is 53730493. The next prime is 53730539. The reversal of 53730533 is 33503735.

It is not a de Polignac number, because 53730533 - 2¹² = 53726437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53730496 and 53730505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53730539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52535 + ... + 53547.

It is an arithmetic number, because the mean of its divisors is an integer number (3650400).

Almost surely, 2^53730533 is an apocalyptic number.

It is an amenable number.

53730533 is a deficient number, since it is larger than the sum of its proper divisors (4675867).

53730533 is a wasteful number, since it uses less digits than its factorization.

53730533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 14175, while the sum is 29.

The square root of 53730533 is about 7330.1113906952. Note that the first 3 decimals coincide. The cubic root of 53730533 is about 377.3465493303.

The spelling of 53730533 in words is "fifty-three million, seven hundred thirty thousand, five hundred thirty-three".