53007742 has 4 divisors (see below), whose sum is σ = 79511616. Its totient is φ = 26503870.

The previous prime is 53007727. The next prime is 53007743. The reversal of 53007742 is 24770035.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53007742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53007743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13251934 + ... + 13251937.

It is an arithmetic number, because the mean of its divisors is an integer number (19877904).

Almost surely, 2^53007742 is an apocalyptic number.

53007742 is a deficient number, since it is larger than the sum of its proper divisors (26503874).

53007742 is a wasteful number, since it uses less digits than its factorization.

53007742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26503873.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 53007742 is about 7280.6415926071. The cubic root of 53007742 is about 375.6468645721.

Adding to 53007742 its reverse (24770035), we get a palindrome (77777777).

The spelling of 53007742 in words is "fifty-three million, seven thousand, seven hundred forty-two".