25016471 has 2 divisors, whose sum is σ = 25016472. Its totient is φ = 25016470.

The previous prime is 25016461. The next prime is 25016501. The reversal of 25016471 is 17461052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25016471 is a prime.

It is a super-3 number, since 3×25016471³ (a number of 23 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25016471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25016441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12508235 + 12508236.

It is an arithmetic number, because the mean of its divisors is an integer number (12508236).

Almost surely, 2^25016471 is an apocalyptic number.

25016471 is a deficient number, since it is larger than the sum of its proper divisors (1).

25016471 is an equidigital number, since it uses as much as digits as its factorization.

25016471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 25016471 is about 5001.6468287955. The cubic root of 25016471 is about 292.4659750521.

The spelling of 25016471 in words is "twenty-five million, sixteen thousand, four hundred seventy-one".