53271340 has 12 divisors (see below), whose sum is σ = 111869856. Its totient is φ = 21308528.

The previous prime is 53271331. The next prime is 53271343. The reversal of 53271340 is 4317235.

It is not an unprimeable number, because it can be changed into a prime (53271343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331764 + ... + 1331803.

It is an arithmetic number, because the mean of its divisors is an integer number (9322488).

Almost surely, 2^53271340 is an apocalyptic number.

It is an amenable number.

53271340 is an abundant number, since it is smaller than the sum of its proper divisors (58598516).

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

53271340 is a wasteful number, since it uses less digits than its factorization.

53271340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663576 (or 2663574 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 53271340 is about 7298.7218059055. The cubic root of 53271340 is about 376.2685101065.

Adding to 53271340 its reverse (4317235), we get a palindrome (57588575).

The spelling of 53271340 in words is "fifty-three million, two hundred seventy-one thousand, three hundred forty".