2505355651 has 2 divisors, whose sum is σ = 2505355652. Its totient is φ = 2505355650.

The previous prime is 2505355631. The next prime is 2505355669. The reversal of 2505355651 is 1565535052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505355651 - 2¹¹ = 2505353603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505355651.

It is not a weakly prime, because it can be changed into another prime (2505355631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252677825 + 1252677826.

It is an arithmetic number, because the mean of its divisors is an integer number (1252677826).

Almost surely, 2^2505355651 is an apocalyptic number.

2505355651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505355651 is an equidigital number, since it uses as much as digits as its factorization.

2505355651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 2505355651 is about 50053.5278576845. The cubic root of 2505355651 is about 1358.1772819469.

The spelling of 2505355651 in words is "two billion, five hundred five million, three hundred fifty-five thousand, six hundred fifty-one".