25413503 has 2 divisors, whose sum is σ = 25413504. Its totient is φ = 25413502.

The previous prime is 25413491. The next prime is 25413517. The reversal of 25413503 is 30531452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25413503 - 2⁶ = 25413439 is a prime.

It is a super-2 number, since 2×25413503² = 1291692269462018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25413593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12706751 + 12706752.

It is an arithmetic number, because the mean of its divisors is an integer number (12706752).

Almost surely, 2^25413503 is an apocalyptic number.

25413503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25413503 is an equidigital number, since it uses as much as digits as its factorization.

25413503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25413503 is about 5041.1807148723. The cubic root of 25413503 is about 294.0050865271.

Adding to 25413503 its reverse (30531452), we get a palindrome (55944955).

The spelling of 25413503 in words is "twenty-five million, four hundred thirteen thousand, five hundred three".