53509450436 has 12 divisors (see below), whose sum is σ = 100844733612. Its totient is φ = 24696669408.

The previous prime is 53509450417. The next prime is 53509450447. The reversal of 53509450436 is 63405490535.

53509450436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 25490038336 + 28019412100 = 159656^2 + 167390^2 .

It is a super-2 number, since 2×53509450436² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514513895 + ... + 514513998.

It is an arithmetic number, because the mean of its divisors is an integer number (8403727801).

Almost surely, 2^53509450436 is an apocalyptic number.

It is an amenable number.

53509450436 is a deficient number, since it is larger than the sum of its proper divisors (47335283176).

53509450436 is a wasteful number, since it uses less digits than its factorization.

53509450436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029027910 (or 1029027908 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 53509450436 in words is "fifty-three billion, five hundred nine million, four hundred fifty thousand, four hundred thirty-six".