53504021053 has 12 divisors (see below), whose sum is σ = 64247094912. Its totient is φ = 44381214360.

The previous prime is 53504021029. The next prime is 53504021057. The reversal of 53504021053 is 35012040535.

53504021053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53504021053 - 2⁹ = 53504020541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53504021057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17610075 + ... + 17613112.

It is an arithmetic number, because the mean of its divisors is an integer number (5353924576).

Almost surely, 2^53504021053 is an apocalyptic number.

It is an amenable number.

53504021053 is a deficient number, since it is larger than the sum of its proper divisors (10743073859).

53504021053 is a wasteful number, since it uses less digits than its factorization.

53504021053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35223232 (or 35223225 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 53504021053 its reverse (35012040535), we get a palindrome (88516061588).

The spelling of 53504021053 in words is "fifty-three billion, five hundred four million, twenty-one thousand, fifty-three".