20252762669 has 2 divisors, whose sum is σ = 20252762670. Its totient is φ = 20252762668.

The previous prime is 20252762657. The next prime is 20252762681. The reversal of 20252762669 is 96626725202.

It is a balanced prime because it is at equal distance from previous prime (20252762657) and next prime (20252762681).

It can be written as a sum of positive squares in only one way, i.e., 20231648644 + 21114025 = 142238^2 + 4595^2 .

It is a cyclic number.

It is not a de Polignac number, because 20252762669 - 2²⁸ = 19984327213 is a prime.

It is a super-2 number, since 2×20252762669² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20252762639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10126381334 + 10126381335.

It is an arithmetic number, because the mean of its divisors is an integer number (10126381335).

Almost surely, 2^20252762669 is an apocalyptic number.

It is an amenable number.

20252762669 is a deficient number, since it is larger than the sum of its proper divisors (1).

20252762669 is an equidigital number, since it uses as much as digits as its factorization.

20252762669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 20252762669 in words is "twenty billion, two hundred fifty-two million, seven hundred sixty-two thousand, six hundred sixty-nine".