2512616891 has 2 divisors, whose sum is σ = 2512616892. Its totient is φ = 2512616890.

The previous prime is 2512616861. The next prime is 2512616921. The reversal of 2512616891 is 1986162152.

It is a balanced prime because it is at equal distance from previous prime (2512616861) and next prime (2512616921).

It is a cyclic number.

It is not a de Polignac number, because 2512616891 - 2¹⁴ = 2512600507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2512616861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256308445 + 1256308446.

It is an arithmetic number, because the mean of its divisors is an integer number (1256308446).

Almost surely, 2^2512616891 is an apocalyptic number.

2512616891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512616891 is an equidigital number, since it uses as much as digits as its factorization.

2512616891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 2512616891 is about 50126.0101244853. The cubic root of 2512616891 is about 1359.4881455801.

The spelling of 2512616891 in words is "two billion, five hundred twelve million, six hundred sixteen thousand, eight hundred ninety-one".