25418651 has 2 divisors, whose sum is σ = 25418652. Its totient is φ = 25418650.

The previous prime is 25418623. The next prime is 25418671. The reversal of 25418651 is 15681452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25418651 is a prime.

It is a super-2 number, since 2×25418651² = 1292215637319602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25418671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12709325 + 12709326.

It is an arithmetic number, because the mean of its divisors is an integer number (12709326).

Almost surely, 2^25418651 is an apocalyptic number.

25418651 is a deficient number, since it is larger than the sum of its proper divisors (1).

25418651 is an equidigital number, since it uses as much as digits as its factorization.

25418651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 32.

The square root of 25418651 is about 5041.6912836865. The cubic root of 25418651 is about 294.0249373390.

The spelling of 25418651 in words is "twenty-five million, four hundred eighteen thousand, six hundred fifty-one".