25451011 has 2 divisors, whose sum is σ = 25451012. Its totient is φ = 25451010.

The previous prime is 25451003. The next prime is 25451053. The reversal of 25451011 is 11015452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25451011 - 2³ = 25451003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25451011.

It is not a weakly prime, because it can be changed into another prime (25451071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12725505 + 12725506.

It is an arithmetic number, because the mean of its divisors is an integer number (12725506).

Almost surely, 2^25451011 is an apocalyptic number.

25451011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25451011 is an equidigital number, since it uses as much as digits as its factorization.

25451011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 25451011 is about 5044.8995034589. The cubic root of 25451011 is about 294.1496569420.

Adding to 25451011 its reverse (11015452), we get a palindrome (36466463).

The spelling of 25451011 in words is "twenty-five million, four hundred fifty-one thousand, eleven".