53327640 has 64 divisors (see below), whose sum is σ = 169400160. Its totient is φ = 13383680.

The previous prime is 53327627. The next prime is 53327641. The reversal of 53327640 is 4672335.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53327598 and 53327607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53327641) 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, 11031 + ... + 15110.

Almost surely, 2^53327640 is an apocalyptic number.

It is an amenable number.

53327640 is an abundant number, since it is smaller than the sum of its proper divisors (116072520).

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

53327640 is a wasteful number, since it uses less digits than its factorization.

53327640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26172 (or 26168 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 53327640 is about 7302.5776271122. The cubic root of 53327640 is about 376.4010169963.

Adding to 53327640 its reverse (4672335), we get a palindrome (57999975).

The spelling of 53327640 in words is "fifty-three million, three hundred twenty-seven thousand, six hundred forty".