25072903 has 2 divisors, whose sum is σ = 25072904. Its totient is φ = 25072902.

The previous prime is 25072877. The next prime is 25072933. The reversal of 25072903 is 30927052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25072903 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25072933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12536451 + 12536452.

It is an arithmetic number, because the mean of its divisors is an integer number (12536452).

Almost surely, 2^25072903 is an apocalyptic number.

25072903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25072903 is an equidigital number, since it uses as much as digits as its factorization.

25072903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 25072903 is about 5007.2849928879. The cubic root of 25072903 is about 292.6857242090.

Adding to 25072903 its reverse (30927052), we get a palindrome (55999955).

It can be divided in two parts, 250 and 72903, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 25072903 in words is "twenty-five million, seventy-two thousand, nine hundred three".