53270140 has 48 divisors (see below), whose sum is σ = 139474944. Its totient is φ = 16603200.

The previous prime is 53270131. The next prime is 53270143. The reversal of 53270140 is 4107235.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53270143) 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, 15756 + ... + 18835.

It is an arithmetic number, because the mean of its divisors is an integer number (2905728).

Almost surely, 2^53270140 is an apocalyptic number.

It is an amenable number.

53270140 is an abundant number, since it is smaller than the sum of its proper divisors (86204804).

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

53270140 is a wasteful number, since it uses less digits than its factorization.

53270140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34618 (or 34616 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 53270140 is about 7298.6395992678. The cubic root of 53270140 is about 376.2656847874.

Adding to 53270140 its reverse (4107235), we get a palindrome (57377375).

The spelling of 53270140 in words is "fifty-three million, two hundred seventy thousand, one hundred forty".