252247047 has 32 divisors (see below), whose sum is σ = 376291776. Its totient is φ = 149299200.

The previous prime is 252246997. The next prime is 252247057. The reversal of 252247047 is 740742252.

It is a happy number.

252247047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252247047 - 2¹⁰ = 252246023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252246999 and 252247017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252247057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115647 + ... + 117807.

It is an arithmetic number, because the mean of its divisors is an integer number (11759118).

Almost surely, 2^252247047 is an apocalyptic number.

252247047 is a deficient number, since it is larger than the sum of its proper divisors (124044729).

252247047 is a wasteful number, since it uses less digits than its factorization.

252247047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 252247047 is about 15882.2872093411. The cubic root of 252247047 is about 631.8422994541.

Adding to 252247047 its reverse (740742252), we get a palindrome (992989299).

The spelling of 252247047 in words is "two hundred fifty-two million, two hundred forty-seven thousand, forty-seven".