25742503 has 2 divisors, whose sum is σ = 25742504. Its totient is φ = 25742502.

The previous prime is 25742489. The next prime is 25742513. The reversal of 25742503 is 30524752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25742503 - 2¹⁷ = 25611431 is a prime.

It is a super-3 number, since 3×25742503³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25742513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12871251 + 12871252.

It is an arithmetic number, because the mean of its divisors is an integer number (12871252).

Almost surely, 2^25742503 is an apocalyptic number.

25742503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25742503 is an equidigital number, since it uses as much as digits as its factorization.

25742503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25742503 is about 5073.7070274110. The cubic root of 25742503 is about 295.2683682529.

The spelling of 25742503 in words is "twenty-five million, seven hundred forty-two thousand, five hundred three".