53078406449 has 4 divisors (see below), whose sum is σ = 53080391664. Its totient is φ = 53076421236.

The previous prime is 53078406431. The next prime is 53078406461. The reversal of 53078406449 is 94460487035.

53078406449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53078406449 - 2²⁰ = 53077357873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53078406397 and 53078406406.

It is not an unprimeable number, because it can be changed into a prime (53078406049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951947 + ... + 1006160.

It is an arithmetic number, because the mean of its divisors is an integer number (13270097916).

Almost surely, 2^53078406449 is an apocalyptic number.

It is an amenable number.

53078406449 is a deficient number, since it is larger than the sum of its proper divisors (1985215).

53078406449 is a wasteful number, since it uses less digits than its factorization.

53078406449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985214.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 53078406449 in words is "fifty-three billion, seventy-eight million, four hundred six thousand, four hundred forty-nine".