53613140 has 48 divisors (see below), whose sum is σ = 129209472. Its totient is φ = 18304896.

The previous prime is 53613107. The next prime is 53613151. The reversal of 53613140 is 4131635.

It is a happy number.

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, 40367 + ... + 41673.

It is an arithmetic number, because the mean of its divisors is an integer number (2691864).

Almost surely, 2^53613140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53613140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64604736).

53613140 is an abundant number, since it is smaller than the sum of its proper divisors (75596332).

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

53613140 is a wasteful number, since it uses less digits than its factorization.

53613140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 53613140 is about 7322.0994257112. The cubic root of 53613140 is about 377.0715341044.

Adding to 53613140 its reverse (4131635), we get a palindrome (57744775).

The spelling of 53613140 in words is "fifty-three million, six hundred thirteen thousand, one hundred forty".