53300040 has 32 divisors (see below), whose sum is σ = 159900480. Its totient is φ = 14213312.

The previous prime is 53300011. The next prime is 53300047. The reversal of 53300040 is 4000335.

It is a super-3 number, since 3×53300040³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 53299992 and 53300019.

It is not an unprimeable number, because it can be changed into a prime (53300047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221964 + ... + 222203.

It is an arithmetic number, because the mean of its divisors is an integer number (4996890).

Almost surely, 2^53300040 is an apocalyptic number.

It is an amenable number.

53300040 is an abundant number, since it is smaller than the sum of its proper divisors (106600440).

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

53300040 is a wasteful number, since it uses less digits than its factorization.

53300040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444181 (or 444177 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 53300040 is about 7300.6876388461. The cubic root of 53300040 is about 376.3360696830.

Adding to 53300040 its reverse (4000335), we get a palindrome (57300375).

The spelling of 53300040 in words is "fifty-three million, three hundred thousand, forty".