53012442 has 32 divisors (see below), whose sum is σ = 121393152. Its totient is φ = 15118704.

The previous prime is 53012441. The next prime is 53012471. The reversal of 53012442 is 24421035.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (53012441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36543 + ... + 37965.

It is an arithmetic number, because the mean of its divisors is an integer number (3793536).

Almost surely, 2^53012442 is an apocalyptic number.

53012442 is an abundant number, since it is smaller than the sum of its proper divisors (68380710).

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

53012442 is a wasteful number, since it uses less digits than its factorization.

53012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 53012442 is about 7280.9643592041. The cubic root of 53012442 is about 375.6579666490.

Adding to 53012442 its reverse (24421035), we get a palindrome (77433477).

The spelling of 53012442 in words is "fifty-three million, twelve thousand, four hundred forty-two".