25042519 has 2 divisors, whose sum is σ = 25042520. Its totient is φ = 25042518.

The previous prime is 25042499. The next prime is 25042529. The reversal of 25042519 is 91524052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25042519 - 2¹¹ = 25040471 is a prime.

It is a super-2 number, since 2×25042519² = 1254255515730722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25042529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521259 + 12521260.

It is an arithmetic number, because the mean of its divisors is an integer number (12521260).

Almost surely, 2^25042519 is an apocalyptic number.

25042519 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042519 is an equidigital number, since it uses as much as digits as its factorization.

25042519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25042519 is about 5004.2500936704. The cubic root of 25042519 is about 292.5674483462.

The spelling of 25042519 in words is "twenty-five million, forty-two thousand, five hundred nineteen".