251104801 has 2 divisors, whose sum is σ = 251104802. Its totient is φ = 251104800.

The previous prime is 251104771. The next prime is 251104813. The reversal of 251104801 is 108401152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179533201 + 71571600 = 13399^2 + 8460^2 .

It is a cyclic number.

It is not a de Polignac number, because 251104801 - 2⁹ = 251104289 is a prime.

It is not a weakly prime, because it can be changed into another prime (251104201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125552400 + 125552401.

It is an arithmetic number, because the mean of its divisors is an integer number (125552401).

Almost surely, 2^251104801 is an apocalyptic number.

It is an amenable number.

251104801 is a deficient number, since it is larger than the sum of its proper divisors (1).

251104801 is an equidigital number, since it uses as much as digits as its factorization.

251104801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 251104801 is about 15846.2866628116. The cubic root of 251104801 is about 630.8871360144.

Adding to 251104801 its reverse (108401152), we get a palindrome (359505953).

The spelling of 251104801 in words is "two hundred fifty-one million, one hundred four thousand, eight hundred one".