53435543444 has 6 divisors (see below), whose sum is σ = 93512201034. Its totient is φ = 26717771720.

The previous prime is 53435543429. The next prime is 53435543461. The reversal of 53435543444 is 44434553435.

It can be written as a sum of positive squares in only one way, i.e., 38656278544 + 14779264900 = 196612^2 + 121570^2 .

It is a super-2 number, since 2×53435543444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53435543395 and 53435543404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6679442927 + ... + 6679442934.

It is an arithmetic number, because the mean of its divisors is an integer number (15585366839).

Almost surely, 2^53435543444 is an apocalyptic number.

It is an amenable number.

53435543444 is a deficient number, since it is larger than the sum of its proper divisors (40076657590).

53435543444 is a wasteful number, since it uses less digits than its factorization.

53435543444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13358885865 (or 13358885863 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 44.

Subtracting from 53435543444 its reverse (44434553435), we obtain a palindrome (9000990009).

The spelling of 53435543444 in words is "fifty-three billion, four hundred thirty-five million, five hundred forty-three thousand, four hundred forty-four".