53064347449 has 3 divisors (see below), whose sum is σ = 53064577807. Its totient is φ = 53064117092.

The previous prime is 53064347431. The next prime is 53064347477. The reversal of 53064347449 is 94474346035.

The square root of 53064347449 is 230357.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 24051357225 + 29012990224 = 155085^2 + 170332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53064347449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53064347249) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 115179 + ... + 345535.

Almost surely, 2^53064347449 is an apocalyptic number.

53064347449 is the 230357-th square number.

53064347449 is the 115179-th centered octagonal number.

It is an amenable number.

53064347449 is a deficient number, since it is larger than the sum of its proper divisors (230358).

53064347449 is an frugal number, since it uses more digits than its factorization.

53064347449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460714 (or 230357 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 49.

Multiplying 53064347449 by its sum of digits (49), we get a square (2600153025001 = 1612499²).

The spelling of 53064347449 in words is "fifty-three billion, sixty-four million, three hundred forty-seven thousand, four hundred forty-nine".