53520030 has 24 divisors (see below), whose sum is σ = 139152312. Its totient is φ = 14271984.

The previous prime is 53520007. The next prime is 53520031. The reversal of 53520030 is 3002535.

53520030 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 2×53520030² = 5728787222401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 53519985 and 53520012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53520031) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 297244 + ... + 297423.

It is an arithmetic number, because the mean of its divisors is an integer number (5798013).

Almost surely, 2^53520030 is an apocalyptic number.

53520030 is an abundant number, since it is smaller than the sum of its proper divisors (85632282).

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

53520030 is a wasteful number, since it uses less digits than its factorization.

53520030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594680 (or 594677 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 53520030 is about 7315.7385136430. The cubic root of 53520030 is about 376.8531207648.

Adding to 53520030 its reverse (3002535), we get a palindrome (56522565).

The spelling of 53520030 in words is "fifty-three million, five hundred twenty thousand, thirty".