25240823 has 2 divisors, whose sum is σ = 25240824. Its totient is φ = 25240822.

The previous prime is 25240807. The next prime is 25240829. The reversal of 25240823 is 32804252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25240823 - 2⁴ = 25240807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25240792 and 25240801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25240829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12620411 + 12620412.

It is an arithmetic number, because the mean of its divisors is an integer number (12620412).

Almost surely, 2^25240823 is an apocalyptic number.

25240823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25240823 is an equidigital number, since it uses as much as digits as its factorization.

25240823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 25240823 is about 5024.0245819462. The cubic root of 25240823 is about 293.3376693861.

The spelling of 25240823 in words is "twenty-five million, two hundred forty thousand, eight hundred twenty-three".