52939780 has 12 divisors (see below), whose sum is σ = 111173580. Its totient is φ = 21175904.

The previous prime is 52939759. The next prime is 52939919. The reversal of 52939780 is 8793925.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11182336 + 41757444 = 3344^2 + 6462^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1323475 + ... + 1323514.

It is an arithmetic number, because the mean of its divisors is an integer number (9264465).

Almost surely, 2^52939780 is an apocalyptic number.

It is an amenable number.

52939780 is an abundant number, since it is smaller than the sum of its proper divisors (58233800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52939780 is a wasteful number, since it uses less digits than its factorization.

52939780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646998 (or 2646996 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 52939780 is about 7275.9727871949. The cubic root of 52939780 is about 375.4862551359.

The spelling of 52939780 in words is "fifty-two million, nine hundred thirty-nine thousand, seven hundred eighty".