247328025 has 24 divisors (see below), whose sum is σ = 467333184. Its totient is φ = 113064000.

The previous prime is 247328023. The next prime is 247328027. The reversal of 247328025 is 520823742.

It is an interprime number because it is at equal distance from previous prime (247328023) and next prime (247328027).

It is not a de Polignac number, because 247328025 - 2¹ = 247328023 is a prime.

It is a super-2 number, since 2×247328025² = 122342303900801250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247328023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235026 + ... + 236075.

It is an arithmetic number, because the mean of its divisors is an integer number (19472216).

Almost surely, 2^247328025 is an apocalyptic number.

247328025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247328025 is a deficient number, since it is larger than the sum of its proper divisors (220005159).

247328025 is a wasteful number, since it uses less digits than its factorization.

247328025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471121 (or 471116 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 247328025 is about 15726.6660484669. Note that the first 3 decimals coincide. The cubic root of 247328025 is about 627.7081630821.

The spelling of 247328025 in words is "two hundred forty-seven million, three hundred twenty-eight thousand, twenty-five".