52240772 has 6 divisors (see below), whose sum is σ = 91421358. Its totient is φ = 26120384.

The previous prime is 52240739. The next prime is 52240777. The reversal of 52240772 is 27704225.

It can be written as a sum of positive squares in only one way, i.e., 51638596 + 602176 = 7186^2 + 776^2 .

It is not an unprimeable number, because it can be changed into a prime (52240777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6530093 + ... + 6530100.

It is an arithmetic number, because the mean of its divisors is an integer number (15236893).

Almost surely, 2^52240772 is an apocalyptic number.

It is an amenable number.

52240772 is a deficient number, since it is larger than the sum of its proper divisors (39180586).

52240772 is a wasteful number, since it uses less digits than its factorization.

52240772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060197 (or 13060195 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 52240772 is about 7227.7778051072. Note that the first 3 decimals coincide. The cubic root of 52240772 is about 373.8263084348.

Adding to 52240772 its reverse (27704225), we get a palindrome (79944997).

The spelling of 52240772 in words is "fifty-two million, two hundred forty thousand, seven hundred seventy-two".