25248919 has 2 divisors, whose sum is σ = 25248920. Its totient is φ = 25248918.

The previous prime is 25248887. The next prime is 25248931. The reversal of 25248919 is 91984252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25248919 - 2⁵ = 25248887 is a prime.

It is a super-2 number, since 2×25248919² = 1275015821337122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25288919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12624459 + 12624460.

It is an arithmetic number, because the mean of its divisors is an integer number (12624460).

Almost surely, 2^25248919 is an apocalyptic number.

25248919 is a deficient number, since it is larger than the sum of its proper divisors (1).

25248919 is an equidigital number, since it uses as much as digits as its factorization.

25248919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 25248919 is about 5024.8302458889. The cubic root of 25248919 is about 293.3690287426.

The spelling of 25248919 in words is "twenty-five million, two hundred forty-eight thousand, nine hundred nineteen".