52779172 has 6 divisors (see below), whose sum is σ = 92363558. Its totient is φ = 26389584.

The previous prime is 52779163. The next prime is 52779173. The reversal of 52779172 is 27197725.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36650916 + 16128256 = 6054^2 + 4016^2 .

It is not an unprimeable number, because it can be changed into a prime (52779173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6597393 + ... + 6597400.

Almost surely, 2^52779172 is an apocalyptic number.

It is an amenable number.

52779172 is a deficient number, since it is larger than the sum of its proper divisors (39584386).

52779172 is a wasteful number, since it uses less digits than its factorization.

52779172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194797 (or 13194795 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 52779172 is about 7264.9275288884. The cubic root of 52779172 is about 375.1061554280.

The spelling of 52779172 in words is "fifty-two million, seven hundred seventy-nine thousand, one hundred seventy-two".