53135136 has 96 divisors (see below), whose sum is σ = 156945600. Its totient is φ = 17487360.

The previous prime is 53135123. The next prime is 53135141. The reversal of 53135136 is 63153135.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76551 + ... + 77241.

It is an arithmetic number, because the mean of its divisors is an integer number (1634850).

Almost surely, 2^53135136 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 53135136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78472800).

53135136 is an abundant number, since it is smaller than the sum of its proper divisors (103810464).

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

53135136 is a wasteful number, since it uses less digits than its factorization.

53135136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 785 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 53135136 is about 7289.3851592573. The cubic root of 53135136 is about 375.9475556853.

The spelling of 53135136 in words is "fifty-three million, one hundred thirty-five thousand, one hundred thirty-six".