53078969 has 4 divisors (see below), whose sum is σ = 54373620. Its totient is φ = 51784320.

The previous prime is 53078953. The next prime is 53078999. The reversal of 53078969 is 96987035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96987035 = 5 ⋅19397407.

It can be written as a sum of positive squares in 2 ways, for example, as 2839225 + 50239744 = 1685^2 + 7088^2 .

It is a cyclic number.

It is not a de Polignac number, because 53078969 - 2⁴ = 53078953 is a prime.

It is a super-2 number, since 2×53078969² = 5634753900205922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53078999) 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, 647264 + ... + 647345.

It is an arithmetic number, because the mean of its divisors is an integer number (13593405).

Almost surely, 2^53078969 is an apocalyptic number.

It is an amenable number.

53078969 is a deficient number, since it is larger than the sum of its proper divisors (1294651).

53078969 is a wasteful number, since it uses less digits than its factorization.

53078969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294650.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 53078969 is about 7285.5314837011. The cubic root of 53078969 is about 375.8150426719.

The spelling of 53078969 in words is "fifty-three million, seventy-eight thousand, nine hundred sixty-nine".