247250275 has 6 divisors (see below), whose sum is σ = 306590372. Its totient is φ = 197800200.

The previous prime is 247250273. The next prime is 247250291. The reversal of 247250275 is 572052742.

It is a happy number.

It is not a de Polignac number, because 247250275 - 2¹ = 247250273 is a prime.

It is a super-2 number, since 2×247250275² = 122265396975151250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247250275.

It is not an unprimeable number, because it can be changed into a prime (247250273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4944981 + ... + 4945030.

Almost surely, 2^247250275 is an apocalyptic number.

247250275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

247250275 is a deficient number, since it is larger than the sum of its proper divisors (59340097).

247250275 is an equidigital number, since it uses as much as digits as its factorization.

247250275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890021 (or 9890016 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 247250275 is about 15724.1939380052. The cubic root of 247250275 is about 627.6423807745.

The spelling of 247250275 in words is "two hundred forty-seven million, two hundred fifty thousand, two hundred seventy-five".