10225001561 has 2 divisors, whose sum is σ = 10225001562. Its totient is φ = 10225001560.

The previous prime is 10225001537. The next prime is 10225001581. The reversal of 10225001561 is 16510052201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8241189961 + 1983811600 = 90781^2 + 44540^2 .

It is an emirp because it is prime and its reverse (16510052201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10225001561 - 2²⁶ = 10157892697 is a prime.

It is not a weakly prime, because it can be changed into another prime (10225001581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5112500780 + 5112500781.

It is an arithmetic number, because the mean of its divisors is an integer number (5112500781).

Almost surely, 2^10225001561 is an apocalyptic number.

It is an amenable number.

10225001561 is a deficient number, since it is larger than the sum of its proper divisors (1).

10225001561 is an equidigital number, since it uses as much as digits as its factorization.

10225001561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 10225001561 its reverse (16510052201), we get a palindrome (26735053762).

The spelling of 10225001561 in words is "ten billion, two hundred twenty-five million, one thousand, five hundred sixty-one".