53113445421 has 16 divisors (see below), whose sum is σ = 71561820288. Its totient is φ = 35037158400.

The previous prime is 53113445401. The next prime is 53113445453. The reversal of 53113445421 is 12454431135.

It is not a de Polignac number, because 53113445421 - 2¹⁹ = 53112921133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53113445401) 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, 1822041 + ... + 1850961.

It is an arithmetic number, because the mean of its divisors is an integer number (4472613768).

Almost surely, 2^53113445421 is an apocalyptic number.

It is an amenable number.

53113445421 is a deficient number, since it is larger than the sum of its proper divisors (18448374867).

53113445421 is a wasteful number, since it uses less digits than its factorization.

53113445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35332.

The product of its digits is 28800, while the sum is 33.

Adding to 53113445421 its reverse (12454431135), we get a palindrome (65567876556).

The spelling of 53113445421 in words is "fifty-three billion, one hundred thirteen million, four hundred forty-five thousand, four hundred twenty-one".