2561762629 has 2 divisors, whose sum is σ = 2561762630. Its totient is φ = 2561762628.

The previous prime is 2561762551. The next prime is 2561762641. The reversal of 2561762629 is 9262671652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2403254529 + 158508100 = 49023^2 + 12590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2561762629 - 2⁹ = 2561762117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2561762659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280881314 + 1280881315.

It is an arithmetic number, because the mean of its divisors is an integer number (1280881315).

Almost surely, 2^2561762629 is an apocalyptic number.

It is an amenable number.

2561762629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2561762629 is an equidigital number, since it uses as much as digits as its factorization.

2561762629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 2561762629 is about 50613.8580726662. The cubic root of 2561762629 is about 1368.2946491856.

The spelling of 2561762629 in words is "two billion, five hundred sixty-one million, seven hundred sixty-two thousand, six hundred twenty-nine".