20152225061 has 2 divisors, whose sum is σ = 20152225062. Its totient is φ = 20152225060.

The previous prime is 20152225013. The next prime is 20152225069. The reversal of 20152225061 is 16052225102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20141002561 + 11222500 = 141919^2 + 3350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20152225061 is a prime.

It is a super-2 number, since 2×20152225061² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20152225061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20152225069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076112530 + 10076112531.

It is an arithmetic number, because the mean of its divisors is an integer number (10076112531).

Almost surely, 2^20152225061 is an apocalyptic number.

It is an amenable number.

20152225061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152225061 is an equidigital number, since it uses as much as digits as its factorization.

20152225061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 20152225061 in words is "twenty billion, one hundred fifty-two million, two hundred twenty-five thousand, sixty-one".