25372547 has 2 divisors, whose sum is σ = 25372548. Its totient is φ = 25372546.

The previous prime is 25372499. The next prime is 25372553. The reversal of 25372547 is 74527352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25372547 - 2¹² = 25368451 is a prime.

It is a super-2 number, since 2×25372547² = 1287532282534418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25372597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12686273 + 12686274.

It is an arithmetic number, because the mean of its divisors is an integer number (12686274).

Almost surely, 2^25372547 is an apocalyptic number.

25372547 is a deficient number, since it is larger than the sum of its proper divisors (1).

25372547 is an equidigital number, since it uses as much as digits as its factorization.

25372547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 35.

The square root of 25372547 is about 5037.1169333260. The cubic root of 25372547 is about 293.8470636232.

Adding to 25372547 its reverse (74527352), we get a palindrome (99899899).

The spelling of 25372547 in words is "twenty-five million, three hundred seventy-two thousand, five hundred forty-seven".