53113777 has 4 divisors (see below), whose sum is σ = 53303076. Its totient is φ = 52924480.

The previous prime is 53113771. The next prime is 53113789. The reversal of 53113777 is 77731135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77731135 = 5 ⋅15546227.

It can be written as a sum of positive squares in 2 ways, for example, as 37503376 + 15610401 = 6124^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 53113777 - 2³ = 53113769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53113771) 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, 94228 + ... + 94789.

It is an arithmetic number, because the mean of its divisors is an integer number (13325769).

Almost surely, 2^53113777 is an apocalyptic number.

It is an amenable number.

53113777 is a deficient number, since it is larger than the sum of its proper divisors (189299).

53113777 is a wasteful number, since it uses less digits than its factorization.

53113777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189298.

The product of its digits is 15435, while the sum is 34.

The square root of 53113777 is about 7287.9199364428. The cubic root of 53113777 is about 375.8971750858.

The spelling of 53113777 in words is "fifty-three million, one hundred thirteen thousand, seven hundred seventy-seven".