25017481 has 2 divisors, whose sum is σ = 25017482. Its totient is φ = 25017480.

The previous prime is 25017457. The next prime is 25017497. The reversal of 25017481 is 18471052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13995081 + 11022400 = 3741^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 25017481 - 2¹¹ = 25015433 is a prime.

It is a super-2 number, since 2×25017481² = 1251748711170722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25017451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12508740 + 12508741.

It is an arithmetic number, because the mean of its divisors is an integer number (12508741).

Almost surely, 2^25017481 is an apocalyptic number.

It is an amenable number.

25017481 is a deficient number, since it is larger than the sum of its proper divisors (1).

25017481 is an equidigital number, since it uses as much as digits as its factorization.

25017481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 25017481 is about 5001.7477945214. The cubic root of 25017481 is about 292.4699109478.

The spelling of 25017481 in words is "twenty-five million, seventeen thousand, four hundred eighty-one".