25418983 has 2 divisors, whose sum is σ = 25418984. Its totient is φ = 25418982.

The previous prime is 25418971. The next prime is 25419001. The reversal of 25418983 is 38981452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25418983 is a prime.

It is a super-2 number, since 2×25418983² = 1292249393508578, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25418083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12709491 + 12709492.

It is an arithmetic number, because the mean of its divisors is an integer number (12709492).

Almost surely, 2^25418983 is an apocalyptic number.

25418983 is a deficient number, since it is larger than the sum of its proper divisors (1).

25418983 is an equidigital number, since it uses as much as digits as its factorization.

25418983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 25418983 is about 5041.7242090380. The cubic root of 25418983 is about 294.0262174470.

The spelling of 25418983 in words is "twenty-five million, four hundred eighteen thousand, nine hundred eighty-three".