52920779 has 4 divisors (see below), whose sum is σ = 56033784. Its totient is φ = 49807776.

The previous prime is 52920761. The next prime is 52920859. The reversal of 52920779 is 97702925.

It is a happy number.

52920779 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.

It is a cyclic number.

It is not a de Polignac number, because 52920779 - 2¹² = 52916683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52920739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556477 + ... + 1556510.

It is an arithmetic number, because the mean of its divisors is an integer number (14008446).

Almost surely, 2^52920779 is an apocalyptic number.

52920779 is a deficient number, since it is larger than the sum of its proper divisors (3113005).

52920779 is a wasteful number, since it uses less digits than its factorization.

52920779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113004.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 52920779 is about 7274.6669339565. Note that the first 3 decimals coincide. The cubic root of 52920779 is about 375.4413269295.

The spelling of 52920779 in words is "fifty-two million, nine hundred twenty thousand, seven hundred seventy-nine".