53965577 has 4 divisors (see below), whose sum is σ = 54078720. Its totient is φ = 53852436.

The previous prime is 53965547. The next prime is 53965591. The reversal of 53965577 is 77556935.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77556935 = 5 ⋅15511387.

It is a cyclic number.

It is not a de Polignac number, because 53965577 - 2¹⁰ = 53964553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53965507) 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, 55853 + ... + 56810.

It is an arithmetic number, because the mean of its divisors is an integer number (13519680).

Almost surely, 2^53965577 is an apocalyptic number.

It is an amenable number.

53965577 is a deficient number, since it is larger than the sum of its proper divisors (113143).

53965577 is a wasteful number, since it uses less digits than its factorization.

53965577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113142.

The product of its digits is 992250, while the sum is 47.

The square root of 53965577 is about 7346.1266664821. The cubic root of 53965577 is about 377.8959825958.

The spelling of 53965577 in words is "fifty-three million, nine hundred sixty-five thousand, five hundred seventy-seven".