53431442 has 8 divisors (see below), whose sum is σ = 84861756. Its totient is φ = 25144192.

The previous prime is 53431429. The next prime is 53431447. The reversal of 53431442 is 24413435.

53431442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52867441 + 564001 = 7271^2 + 751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53431447) 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 3 ways as a sum of consecutive naturals, for example, 785723 + ... + 785790.

Almost surely, 2^53431442 is an apocalyptic number.

53431442 is a deficient number, since it is larger than the sum of its proper divisors (31430314).

53431442 is a wasteful number, since it uses less digits than its factorization.

53431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571532.

The product of its digits is 5760, while the sum is 26.

The square root of 53431442 is about 7309.6813884054. The cubic root of 53431442 is about 376.6450796445.

Adding to 53431442 its reverse (24413435), we get a palindrome (77844877).

The spelling of 53431442 in words is "fifty-three million, four hundred thirty-one thousand, four hundred forty-two".