53021405242 has 16 divisors (see below), whose sum is σ = 85799986272. Its totient is φ = 24428553840.

The previous prime is 53021405209. The next prime is 53021405243. The reversal of 53021405242 is 24250412035.

It is a super-2 number, since 2×53021405242² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53021405242.

It is not an unprimeable number, because it can be changed into a prime (53021405243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770868 + ... + 1800559.

It is an arithmetic number, because the mean of its divisors is an integer number (5362499142).

Almost surely, 2^53021405242 is an apocalyptic number.

53021405242 is a deficient number, since it is larger than the sum of its proper divisors (32778581030).

53021405242 is a wasteful number, since it uses less digits than its factorization.

53021405242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572013.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 53021405242 its reverse (24250412035), we get a palindrome (77271817277).

The spelling of 53021405242 in words is "fifty-three billion, twenty-one million, four hundred five thousand, two hundred forty-two".