53542140 has 48 divisors (see below), whose sum is σ = 152386080. Its totient is φ = 14042880.

The previous prime is 53542127. The next prime is 53542169. The reversal of 53542140 is 4124535.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 53542140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3655 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (3174710).

Almost surely, 2^53542140 is an apocalyptic number.

It is an amenable number.

53542140 is an abundant number, since it is smaller than the sum of its proper divisors (98843940).

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

53542140 is a wasteful number, since it uses less digits than its factorization.

53542140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702 (or 14700 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53542140 is about 7317.2494832416. The cubic root of 53542140 is about 376.9050083501.

Adding to 53542140 its reverse (4124535), we get a palindrome (57666675).

The spelling of 53542140 in words is "fifty-three million, five hundred forty-two thousand, one hundred forty".