53112402 has 64 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 14953680.

The previous prime is 53112383. The next prime is 53112407. The reversal of 53112402 is 20421135.

53112402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (53112407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25849 + ... + 27827.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^53112402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53112402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68428800).

53112402 is an abundant number, since it is smaller than the sum of its proper divisors (83745198).

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

53112402 is a wasteful number, since it uses less digits than its factorization.

53112402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 53112402 is about 7287.8256016455. The cubic root of 53112402 is about 375.8939313381.

Adding to 53112402 its reverse (20421135), we get a palindrome (73533537).

The spelling of 53112402 in words is "fifty-three million, one hundred twelve thousand, four hundred two".