53015779 has 4 divisors (see below), whose sum is σ = 53030376. Its totient is φ = 53001184.

The previous prime is 53015773. The next prime is 53015801. The reversal of 53015779 is 97751035.

It is a happy 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 is a cyclic number.

It is not a de Polignac number, because 53015779 - 2¹⁵ = 52983011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53015773) 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, 2907 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (13257594).

Almost surely, 2^53015779 is an apocalyptic number.

53015779 is a deficient number, since it is larger than the sum of its proper divisors (14597).

53015779 is an equidigital number, since it uses as much as digits as its factorization.

53015779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14596.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 53015779 is about 7281.1935148024. The cubic root of 53015779 is about 375.6658487252.

The spelling of 53015779 in words is "fifty-three million, fifteen thousand, seven hundred seventy-nine".