53385140 has 12 divisors (see below), whose sum is σ = 112108836. Its totient is φ = 21354048.

The previous prime is 53385127. The next prime is 53385149. The reversal of 53385140 is 4158335.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 16467364 = 6076^2 + 4058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53385149) 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, 1334609 + ... + 1334648.

It is an arithmetic number, because the mean of its divisors is an integer number (9342403).

Almost surely, 2^53385140 is an apocalyptic number.

It is an amenable number.

53385140 is an abundant number, since it is smaller than the sum of its proper divisors (58723696).

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

53385140 is a wasteful number, since it uses less digits than its factorization.

53385140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669266 (or 2669264 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 53385140 is about 7306.5135324586. The cubic root of 53385140 is about 376.5362519597.

The spelling of 53385140 in words is "fifty-three million, three hundred eighty-five thousand, one hundred forty".