2505111061 has 2 divisors, whose sum is σ = 2505111062. Its totient is φ = 2505111060.

The previous prime is 2505111047. The next prime is 2505111067. The reversal of 2505111061 is 1601115052.

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., 2425562500 + 79548561 = 49250^2 + 8919^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505111061 - 2¹⁷ = 2504979989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505111067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252555530 + 1252555531.

It is an arithmetic number, because the mean of its divisors is an integer number (1252555531).

Almost surely, 2^2505111061 is an apocalyptic number.

It is an amenable number.

2505111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505111061 is an equidigital number, since it uses as much as digits as its factorization.

2505111061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 2505111061 is about 50051.0845137246. The cubic root of 2505111061 is about 1358.1330823151.

The spelling of 2505111061 in words is "two billion, five hundred five million, one hundred eleven thousand, sixty-one".